1 


.  v  8 


HY-RIB 

HANDBOOK 

ROOFS-FLOORS-WALLS 
SIDINGS- PARTITIONS 
CEILINGS  — FURRING 


SILOS  —  TANKS  —  CONDUITS 


CONCRETE  WITHOUT  FORMS 


FIFTEENTH  EDITION 


TRUSSED  CONCRETE  STEEL  CO. 

YOUNGSTOWN,  OHIO 


Copyright 

1909,  1910,  1911,  1912,  1913,  1914,  1915,  1916 
Trussed  Concrete  Steel  Co. 


LLA.  9S'ol4.^  Kii3N\ 


Table  of  Contents 

Description  and  Properties  of  Hy-Rib . Pages  5-9 

Floors  of  Hy-Rib . Pages  10-21 

Roofs  of  Hy-Rib . Pages  22-36 

Safe  Loads  and  Specifications 

for  Floors  and  Roofs . Pages  37-41 

Walls  and  Sidings  of  Hy-Rib . Pages  42-63 

Partitions  of  Hy-Rib . Pages  64-91 

Ceilings  of  Hy-Rib . Pages  92-101 

Furring  with  Hy-Rib .  Pages  102-103 

Residences,  Garages,  Fences,  etc . Pages  104-116 

Farm  Buildings  . Pages  117-119 

Silos,  Tanks,  etc . Pages  120-125 

Conduits,  Flumes  and  Culverts . Pages  126-130 

Hy-Rib  Bender,  Punch  and  Cutter . Pages  131-135 

Rib  Lath  and  Other  Kahn  Building  Prod¬ 
ucts  . Pages  136-142 


For  more  explicit  references  see  Indexes  Pages  143  and 
144. 


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Chemical  Products  Plant  (The  Trus-Con  Laboratories),  Detroit,  Mich. 
Warehouses  and  Tile  Plants  in  various  cities. 
Representatives  in  Principal  Cities. 


HY-RIB 


Hy-Rib  is  a  steel  sheathing  stiffened  by  rigid  deep  ribs, 
manufactured  from  a  single  plate  of  steel.  Hy-Rib  is  a  com¬ 
bined  unit  of  forms,  reinforcement,  lath  and  channels  for 
concrete,  stucco  and  plaster. 

In  concrete  floors  and  roofs,  Hy-Rib  eliminates  forms. 
In  sidings,  partitions  and  ceilings,  Hy-Rib  eliminates  chan¬ 
nels  and  wiring.  The  mesh  of  the  Hy-Rib  provides  a  per¬ 
fect  surface  and  key  for  plaster.  Our  large  factory  promptly 
furnishes  Hy-Rib  in  curved  as  well  as  straight  sheets. 

Why  you  should  use  Hy-Rib 

All  forms  are  eliminated. 

No  stiffening  channels  nor  wiring  are  required. 

Concrete  and  plaster  are  perfectly  reinforced. 

Labor  and  time  are  saved. 

Weight  of  construction  is  reduced. 

Available  floor  space  is  increased. 

Fireproof,'  permanent  and  economical. 

Where  you  should  use  Hy-Rib 

In  all  buildings,  large  or  small,  in  roofs,  floors,  walls, 
sidings,  partitions,  ceilings  and  furring ;  in  arched  floors, 
culverts,  conduits,  sewers,  silos  and  tanks. 

Hy-Rib  lowers  the  cost  of  building  because  it  elim¬ 
inates  forms  and  saves  materials,  labor  and  time.  Hy-Rib 
provides  permanent,  fireproof  construction  that  is  more 
economical  than  wood  which  burns  and  rots. 

The  following  pages  indicate  only  the  more  general  ap¬ 
plications  of  Hy-Rib.  Detailed  suggestions  showing  how 
HY-RIB  can  be  best  used  in  your  own  particular  work 
will  be  sent  on  request. 


The  Four  Types  of  Hy-Rib 


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7 


Hy-Rib — A  Kahn  Building  Product 


It’s  the 
depth  of 

the  ribs 

that 

counts 


HY-RIB 
"  HY-RIB 
"  HY-RIB 
"  HY-RIB 
RIB  LATH 


Specify  Hy-Rib  by  its  depth — Choose  the  depth  of  ribs 
that  most  closely  meets  your  exact  requirements.  Our 
complete  line  includes  all  depths  from  flat  Rib  Lath  to  Hy- 
Rib,  with  1  y2  in.  deep  ribs — 4  distinct  types  of  Hy-Rib 
(pages  6.  7) — 3  types  of  Rib  Lath  (see  pages  136,137) — all 
in  various  gauges.  The  correct  material  is  thus  assured  at 
an  economical  cost  for  every  possible  use  in  building  con¬ 
struction. 


Properties  of  Hy-Rib 


Type  of  HY-RIB 

Fonnorlv 

rsiUcd 

HeLht  of 
Ribs 

SpacMiy  of 
Ribs 

Width  of 
Sheets 

(iaoge  Nos. 

U.  S.  Standard 

I'A  Hv-Rib 

Deep- Rib 

i  %• 

7 

14' 

22,  24,  26 

ti  Hy-Rib 

7-Rib 

11" 

4" 

24' 

22.  24.  26.  28 

H  Hy-Rib 

3-Kib 

tr 

S' 

16" 

24.  26.  2- 

Hy-Rib 

6-Rib 

H" 

4' 

20" 

24.  26.  28 

Other  gauges  are  furnished  on  special  order. 

Standard  lengths,  6,  8,  10  and  12  feet. 

Other  lengths  are  cut  from  standard  lengths  without 
charge  except  for  waste. 

In  ordering  no  allowance  need  be  made  for  side  laps, 
as  these  are  provided  in  the  Hy-Rib.  Allow  2"  for  end  laps 
where  splice  occurs  over  supports;  otherwise,  eight  inches. 

1/4"  and  Hy-Rib  are  shipped  in  bundles  of  eight 
sheets;  }£"  and  y"  Hy-Rib  in  bundles  of  sixteen  sheets. 

Hy-Rib  is  supplied  either  painted  or  unpainted. 

Til "  Hy-Rib  (only)  is  furnished  curved  to  any  radius 
greater  than  13  inches. 


8 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Bent  to  Curve 

Our  shops  can  furnish  15/16"  Hy-Rib  (only)  bent  to  arcs  of 
circles  with  any  radius  greater  than  13  inches  as  indicated  below. 
The  Hand  Power  Bender,  shown  on  page  131,  may  be  used  for 
curving  15/16"  Hy-Rib  in  the  field. 


HY-RIB  CAN  BE  CURVED 
TO  ANY  RADIUS  GREATER 
THAN  13  INCHES 


QUARTER-  SEMI-CIRCLE 

CIRCLE 


FOR  CIRCULAR  TANKS, 
SEWERS,  SILOS,  ETC. 


CONTINUOUS  SHEETj 

-MUST  BE  , 

MUST  BE 

STRAIGHT 

STRAIGHT 

•-VARIABLE-.- 

/  /\  /  R 

THIS _ „ 

/  ANY  PORTION  OF  \  /  \ 

dimension" 

f  SEGMENT  OF  A  CIRCLE  \  1  \ 

VARIABLE 

For  Arch  Floor  Construction 

METHODS  OF  BENDING  15/16"  HY-RIB 

9 


Hy-Rib — A  Kahn  Building  Product 


Arched  Hy-Rib  Floor  in  Joseph  Bendt  Store,  Kenosha,  Wis., 
used  in  conjunction  with  reinforced  concrete  beams. 


Arched  Hy-Rib  Floor — Union  Street  Ry.  Office  Building  and  Car 

Barns,  Boston,  Mass. 

Hy-Rib  provides  the  form  work  for  slab  and  sides  of  beams. 
Only  formwork  required  is  board  at  bottom  of  reinforced  concrete 
beam  and  a  few  lines  of  joists  as  temporary  supports  for  Hy-Rib. 


10 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Floors 

In  concrete  floors,  Hy-Rib  eliminates  forms  and  rigidly 
reinforces  the  concrete.  It  simplifies  construction,  saves 
time,  reduces  costs  and  provides  flat  or  arched  floors  with 
any  type  of  beam. 

The  use  of  Hy-Rib  in  floors  is  very  simple.  Lay  the 
Hy-Rib  over  the  supports  with  the  mesh  side  down  and 
pour  on  the  concrete  above.  Only  enough  concrete  flows 
through  the  mesh  to  secure  a  perfect  clinch  on  the  steel. 
The  plaster  is  applied  directly  to  the  under  surface.  Hy- 
Rib  provides  in  itself  the  forms  and  reinforcement  for  con¬ 
crete,  greatly  reducing  the  cost  of  construction  and  saving 
time  in  erection. 

Hy-Rib  is  manufactured  with  a  rib  along  each  side  of 
the  sheet,  making  a  perfect  interlocking  splice  when  two 
sheets  are  joined,  as  shown  on  page  76.  A  similar  interlock¬ 
ing  splice  is  provided  at  the  ends  by  allowing  the  two  sheets 
to  overlap.  In  this  way  absolute  continuity  of  strength  and 
reinforcement  is  provided  throughout  the  entire  floor  sur¬ 
face. 


For  arched  floors,  Hy-Rib  is  furnished  by  our  shops 
bent  to  exact  curve,  eliminating  expensive  circular  forms. 
Practical  builders  know  that  forms  are  the  most  costly  and 
troublesome  part  of  concrete  construction.  By  eliminating 
all  forms,  Hy-Rib  greatly  economizes  construction,  saving 
time,  labor  and  money. 


11 


Hy-Rib — A  Kahn  Building  Product 


Arched  Hy-Rib  Floors,  Hawaiian  Pineapple  Co.,  Honolulu,  T.  H., 
showing  views  from  above  and  below  of  Hy-Rib  ready  for 
concreting.  Clear  spans  of  7'  6"  without  use  of  forms 
or  supports. 


12 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Arched  Floors 

All  the  expensive  circular  forms  required  in  arched  floor 
construction  are  eliminated  by  using  Hy-Rib,  which  also 
provides  a  rigid,  substantial  reinforcement  for  the  concrete. 

Our  shops  furnish  Hy-Rib  bent  to  the  exact  curve, 
ready  to  set  in  place  between  the  beams.  All  types  of 
arched  floors  are  provided  (see  pages  9,  14,  15),  by  this 
shop-curved  Hy-Rib.  Note  that  in  many  instances  the  Hy- 
Rib  also  furnishes  the  forms  for  the  sides  of  the  beams,  as 
well  as  the  forms  and  reinforcement  for  the  floors.  The 
shop  bending  does  away  with  all  special  field  labor  and 
complicated  circular  forms. 


Arched  Hy-Rib  Floors,  Power  Station,  North  Adams  Power  Co., 

Boston,  Mass. 


13 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  sheets  are  laid  on  top  of  steel  beams,  concrete  poured 
in  and  under  surface  plastered;  no  forms  are  used.  Solid  concrete 
or  hollow  tile  may  be  substituted  for  fireproofing  of  steel  beam. 


COr'CRE.TE 


■  t  -i-r-t?' . ,  £■-- 

A.V-Tf.fr? 

—  - 1  f.m  -  :  - “  - - - -  i 

MV-R.ie.-J  PL^STtR-J 

Hy-Rib  Floor — Type  B.  C-Eib-latm 

Finished  concrete  slab  is  flush  with  top  of  steel  beam,  giving 
greater  head  room  below  beams.  Hy-Rib  sheets  are  supported 
on  the  sides  of  beam  boxes  used  as  forms  for  the  steel  beam 
fireproofing.  No  other  forms  are  necessary. 


Flat  ceiling  is  secured  by  constructing  Hy-Rib  slab  on  the 
lower  flange  of  beam.  A  light  cinder  fill  over  the  slab  brings  the 
finished  floor  flush  with  top  of  steel  beam,  and  no  forms  are 
necessary. 


Hy-Rib  Floors  with  Reinforced  Concrete  Beams — Types  A,  B  and  C 

Hy-Rib  sheets  are  supported  on  the  sides  of  the  beam  boxes 
used  as  forms  for  the  concrete  beams;  no  other  forms  necessary. 
If  Hy-Rib  extends  over  concrete  beams,  punch  out  the  lathing  be¬ 
tween  the  ribs  to  permit  filling  of  the  beam. 


14 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Ends  of  Hy-Rib  sheets  are  curved  (bending  done  in  our  shops) 
and  rest  on  lower  flange  of  beams.  Hy-Rib  provides  the  fireproof¬ 
ing  of  steel  beams  without  the  use  of  forms.  With  reinforced 
concrete  beams  the  sides  of  the  beam  boxes  are  eliminated  as  the 
ends  of  the  Hy-Rib  sheets  rest  on  the  bottom  board. 


Hy-Rib  Floor — Type  E. 

Arched  concrete  floors  used  for  carrying  heavy  loads.  Hy-Rib 
comes  to  the  job  bent  to  exact  curve.  Concrete  is  poured  in  above 
and  plaster  applied  to  the  under  surface.  No  forms  are  necessary 
for  the  concrete  slabs  or  sides  of  beams. 


Concrete  floor 


mlTj- 

T~ 

\ 

Cty-Ct/by 
'  Jtapte  or  net/) 

W 

bu/Mnq  papers 
— -joist - * 

Replacing  Wood  Flooring  with  Cement,  Terrazo,  Tile,  Etc. 

In  entrance  ways,  lobbies,  halls,  bathrooms,  etc.,  in  old  build¬ 
ings,  the  wood  flooring  is  removed  and  building  paper  is  tacked  to 
the  joists.  Hy-Rib  is  placed  and  concrete  poured  to  proper  thick¬ 
ness.  This  concrete  furnishes  the  necessary  base  for  tile,  terrazo 
or  composition  flooring. 


15 


Hy-Rib — A  Kahn  Building  Product 


Under  Side  of  Hy-Rib  Floor  before  Plastering. 
Edward  Ford  Plate  Glass  Co.,  Rossford,  Ohio. 
DeVore-McGormley  Co.,  Engineers. 


Under  Side  of  Hy-Rib  Floor  (Type  C,  p.  14)  ready  for  Plastering. 
District  Court  House,  Fall  River,  Mass. 


16 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Floor,  K.  of  P.  Orphanage,  Weatherford,  Texas. 


Arched  Hy-Rib  Floors  (Type  D,  page  15)  before  attaching  Hy-Rib 
Suspended  Ceiling.  Detroit  Athletic  Club  Building, 
Detroit,  Mich. 


17 


Hy-Rib — A  Kahn  Building  Product 


St.  Mary’s  Hospital,  Milwaukee,  Wis. 

Esenwein  &  Johnson,  Archts.  J.  D.  Gregg,  Supervising  Archt. 
Arched  Hy-Rib  floors  throughout.  Hy-Rib  ready  for  concreting. 


Arched  Hy-Rib  Floors,  Westgate  Common  Mills,  London,  Eng. 

18 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Pouring  concrete  floor,  reinforced  with  IP2”  Hy-Rib. 
St.  Andrew  School,  Singapore,  Straits  Settlement. 
Note  Chinese  women  carrying  concrete  in  buckets. 


Concrete  Bridge  Floor  reinforced  with  l/"  Hy-Rib — Viaduct  over 
Nolan  Creek,  Belton,  Texas. 


19 


Hy-Rib — A  Kahn  Building  Product 


Load  of  1,400  lbs.  per  sq.  ft.  after  Fire  Test  of  1700°  for  Four  hours. 

New  York  Fire  Test  on  Hy-Rib  Arch 

( Compiled  from  official  refort  of  Fire,  Load  and  Water  Test  made  upon  cinder 
concrete  floor  arches  at  Columbia  Fire  Testing  Station.  New  York.  Test  was  con¬ 
ducted  by  Ira  Ft.  IVonlson,  /•'.  M.,  in  co-operation  with  City  Building  Bureaus.) 

Span  of  segmental  arch.  8  feet;  thickness  at  crown,  4^4  inches; 
total  depth  at  haunches,  15  inches.  Concrete — Portland  cement 
1  part,  sand  1  part,  unsifted  cinders  6  parts. 

The  concrete  floor  arch  reinforced  with  Hy-Rib  was  subjected 
to  a  continuous  fire  below  the  floor  for  four  hours  at  an  average 
temperature  of  1700  degrees  F„  floor  carrying  at  the  same  time  a 
distributed  load  of  150  lbs.  per  square  foot.  At  the  end  of  the  four 
hours  the  under  side  of  floor  while  still  red  hot  was  subjected  to 
a  \lA  inch  stream  of  cold  water  for  five  minutes.  Then  the  upper 
side  of  the  floor  was  flooded  and  afterwards  the  stream  was  again 
applied  on  the  under  side  for  five  minutes. 

After  cooling,  the  arch  was  subjected  to  a  load  of  600  lbs.  per 
square  foot.  Later  a  6  ft.  wide  section  was  cut  out  of  the  floor 
arch  and  this  section  was  loaded  to  1400  lbs.  per  square  foot. 
Under  this  severe  load  the  deflection  was  only  •%  inch. 

As  a  result  of  this  test  the  Building  Departments  of  Manhattan 
and  Brooklyn  have  approved  the  use  of  cinder  concrete  arches 
reinforced  with  Hy-Rib,  4  inches  thick  at  the  crown,  for  loads  up 
to  350  lbs.  per  sq.  ft.  and  span  of  8  feet. 


20 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Loads  carried  by  Arched  Hy-Rib  Floors 


Arched  Concrete  Floors  are  capable  of  carrying  very 
heavy  loads,  as  has  been  frequently  demonstrated  in  actual 
tests.  (See  New  York  Fire  Test,  page  20.)  Curved  Hy-Rib 
constitutes  an  ideal  type  of  combined  centering  and  rein¬ 
forcement  for  arched  floors.  Expensive  circular  forms  are 
thus  eliminated  and  the  Hy-Rib,  curved  in  our  own  shops, 
is  exceptionally  economical  in  placing  and  handling.  Curved 
Hy-Rib  sheets  have  far  greater  stiffness  as  centering  than 
straight  sheets,  thus  permitting  of  a  wider  spacing  of  sup¬ 
ports. 

The  theoretical  design  of  arches  assumes  absolutely 
rigid  abutments.  The  thrust  per  lineal  foot  may  be  figured 
by  means  of  the  following  formula: 

1.5  W  L2 
T  = - 


R 


ing 


Where  W  =  the  load  per  square  foot 

L  =  span  in  feet  between  supports,  and 
R  =  rise  of  the  arch  in  inches. 

The  crown  thickness  may  be  determined  by  the  follow- 
formula  : 

T 


C  = 


12S 

Where  C  =  the  crown  thickness  in  inches 
T  =  the  thrust  per -lineal  foot,  and 
S  =  the  allowable  fibre  stress  per  sq.  inch. 

In  actual  building  construction,  it  is  practically  impos¬ 
sible  to  secure  absolutely  rigid  abutments,  unless  tie  rods 
are  used,  and  the  crown  thickness  must  therefore  be  ma¬ 
terially  increased  over  the  depth  determined  by  the  above 
formula.  There  is  no  question  but  that  an  Arched  Concrete 
Floor  is  capable  of  carrying  considerably  more  load  than  a 
flat  slab  of  the  same  thickness.  For  loads  on  flat  slabs, 
see  pages  37  to  39.) 

Our  engineers  have  had  wide  experience  in  the  design 
of  arched  floors  under  varying  conditions.  We  would  be 
glad  to  submit  our  detailed  suggestions  on  the  design  of 
arched  floors  to  meet  any  particular  condition. 


21 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Roof  for  Packard  Motor  Car  Co.,  Detroit,  Mich. 

Albert  Kahn,  Architect 
Ernest  Wilby,  Assoc. 


Hy-Rib  roof  ready  for  concreting,  Hayden  Pump  Company, 
Quincy,  Ill.  No  forms  required. 

22 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Roofs 

Thin  concrete  roofs,  light  in  weight,  are  built  with  Hy- 
Rib  without  the  use  of  forms.  The  great  saving  in  dead 
weight  reduces  the  size  and  cost  of  purlins,  roof  trusses, 
columns  and  foundations. 

This  thin  slab  also  saves  in  concrete  materials  and  in 
the  labor  of  placing  them. 

No  forms  are  required  with  Hy-Rib  concrete  roofs. 
Imagine  the  tremendous  saving  in  false  work,  especially 
in  industrial  plants,  where  the  roofs  are  often  20  to  50  feet 
above  the  ground.  Hy-Rib  provides  a  perfect  fireproof  con¬ 
struction  at  economical  cost — easily  and  rapidly  installed. 

The  construction  is  very  simple.  Hy-Rib  sheets  are 
placed  over  purlins,  concrete  applied  and  under  surface 
plastered.  The  simple  scaffolding  for  the  plasterers  is 
readily  hung  from  the  trusses. 

Corrugated  iron  sheets,  frequently  used  in  roofs  and 
sidings  of  industrial  buildings,  are  unsatisfactory,  as  they 
rust  out  in  a  shoYt  time  and  have  to  be  painted  frequently. 
The  permanent  nature  of  Hy-Rib  concrete  makes  it  far 
more  economical,  while  its  initial  cost  is  but  little  more  than 
corrugated  iron.  Hy-Rib  concrete  roofs  entail  no  expense 
for  maintenance.  Owing  to  the  insulating  qualities  of  the 
concrete  construction,  a  marked  saving  in  cost  of  heating 
the  building  is  effected. 


23 


Hy-Rib — A  Kahn  Building  Product 


24 


Hy-Rib  Roofs  before  Concreting.  Edward  Ford  Plate  Glass  Co.,  Rossford, 

DeVore-McGormley  Co.,  Toledo,  O.,  Engineers. 

Over  1,000,000  sq.  ft.  of  Hy-Rib  Construction.  United  Steel  Sash  Throughout. 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


25 


Geo.  A.  Fuller  Co.,  Contractors.  Geo.  H.  Webb.  Chief  Engineer. 


Hy-Rib — A  Kahn  Building  Product 


20 


Hy-Rib  Roofs,  Featherstone  Foundry,  Chicago,  Ill.  Arnold  Co.,  Engineers. 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


27 


Milwaukee  Corrugating  Co.,  Milwaukee,  Wis. 

Hy-Rib  Concrete  Roofs  and  Partitions;  United  Steel  Sash  for  Windows. 


Hy-Rib — A  Kahn  Building  Product 


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28 


Hy-Rib  Concrete  Roofs  and  Sidings,  Continental  Motor  Mfg.  Co.,  Detroit,  Mich. 
Albert  Kahn,  Architect;  Ernest  Wilby,  Associate. 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Roofs,  Fayette  R.  Plumb  Tool  Co.,  St.  Louis,  Mo. 


Hy-Rib  Roofs,  Kempsmith  Mfg.  Co.,  West  Allis,  Wis. 

29 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Roofs  for  Stables,  City  Water  Works,  Detroit,  Mich. 
Smith,  Hinchman  &  Grylls,  Architects. 


SECTION  B-6 


SECTION  A-A 


DETAIL  OF  ROOF  TILE  SUPPORTS  WITH 
RIDS  OF  HY-RIB  EXTENDING  HORIZONTALLY 


30 


DFTAIL  of  roof  tile  SUPPORTS  WITH 
RIBS  OF  HYT5IB  EXTENDING  IN  DIRECTION 
OF  ROOF  SLOPE 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Concrete  Roof,  Pennsylvania  Rubber  Co.,  Jeannette,  Pa. 
W.  G.  Wilkins  Co.,  Architect  and  Engineers. 


Hy-Rib  Saw-tooth  Roofs  and  Sidings. 
Jackson  Cushion  Spring  Co.,  Jackson,  Midi. 


31 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Saw-tooth  Roofs,  Oliver  Chilled  Plow  Co.,  Hamilton,  Ont. 
David  Dick  &  Son,  Contractors.  Prack  &  Perrine,  Architects. 


Hy-Rib  Concrete  Side  Walls  and  Sawtooth  Roofs. 
Western  Sugar  Refining  Co.,  San  Francisco,  Cal. 


32 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Roof  for  Soft  Foundry  Building. 
American  Car  &  Foundry  Co.,  Berwick,  Pa. 


Southern  Methodist  University,  Dallas,  Texas. 

Shepley,  Rutan  &  Coolidge,  Architects, 
Dome  and  entire  roof  of  Hy-Rib  Construction. 


33 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Dome  for  Presidential  Palace,  Republic  of  Cuba, 
Havana,  Cuba. 


. 

' 

i 

aw 

1 

■ 

BOH 

Roof  of  1}4"  Hy-Rib,  Fairview  Mausoleum, 

Milwaukee,  Wis. 


34 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Concreting  1^4"  Hy-Rib  on  roof  of  a  building  at  our 
Youngstown  Plant. 


Under  side  of  Hy-Rib  Roof,  partly  plastered. 
Note  plasterer’s  scaffold  suspended  from  steel  truss. 

Only  one  coat  of  Cement  Plaster  necessary. 

35 


Hy-Rib — A  Kahn  Building  Product 


Terrific  heat  of  160  gallons  of  burning  Kerosene  has  no  effect  on 
Hy-Rib  Concrete  Tank.  Size:  5' x  5' x  5',  3  ins.  thick. 


2  in.  Concrete  Slab  reinforced  with  Hy-Rib,  5'  y clear  Span. 
Mixture,  1:2:4.  Designed  for  a  live  load  of  112  lbs.  per  sq.  ft.  and 
carrying  load  of  625  lbs.  per  sq.  ft.  Fire  and  Load  Tests  con¬ 
ducted  by  Howarth  Erskine,  Ltd.,  Singapore,  Straits  Settlements. 

36 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Explanation  of  Hy-Rib  Slab  Tables 

Pages  38  and  39 

Upper  table  gives  safe  loads  carried  by  slab  after  the  concrete 
has  thoroughly  set.  Safe  loads  include  weight  of  slab.  In  floors 
and  roofs  weight  of  the  slab  must  be  deducted  from  the  loads 
given  to  determine  the  safe  live  load.  Lower  table  is  used  to  deter¬ 
mine  the  load  Hy-Rib  will  carry  as  centering  before  the  concrete 
has  set. 

Example:  Given  a  6  ft.  span  to  carry  a  safe  live  load  of  110  lbs. 
per  sq.  ft.  Use  tables  on  page  38.  Opposite  2^4-inch  slab  rein¬ 
forced  with  No.  24  41"  Hy-Rib  read  152  lbs.  load.  Deduct  from 
this  load  36  lbs.  (weight  of  2j4-inch  slab  +  l/2  in.  cement  plaster 
underneath),  giving  safe  live  load  of  116  lbs. 

Lower  table,  page  38,  shows  that  No.  24  4§"  Hy-Rib  as  center¬ 
ing  will  not  support  the  weight  of  2l/2  inches  of  wet  concrete  on 
6  ft.  span,  but  will  carry  it  on  a  span  as  great  as  3'  4".  Therefore 
use  one  temporary  line  of  shoring  down  the  center  of  the  span. 
This  shoring  is  removed  after  concrete  has  set. 


HY-RIB  SHtATHING. 


Temporary  Supports  for  HY-RIB  as  Used  in  Floors  and  Roofs — 
Required  Only  in  Special  Cases.  See  lower  table,  pages  38  and  39. 


Designing  Data  for  Hy-Rib 

Hy-Rib  is  manufactured  from  the  highest  grade  of  open  hearth 

rolled  steel  plates,  also  from  Copper  Bearing  Steel. 


Type  of  Hy-Rib 

Cross-Sectional  Area  of  Steel  per  foot  of 
width  including  side  laps  (square  inches). 

Distance  of 
Center  of 
Gravity 
from  Flat 
Side 

28  Gauge 

26  Gauge 

24  Gauge 

22  Gauge 

H*  Hy-Rib  (7- Rib) 

\'A'  Hy-Rib  (Deep-Rib) 

.137 

.164 

.177 

219 

.236 

.273 

.295 

.33  in. 
.50  in. 

Weights  of  Hy-Rib  (lbs.  per  sq.  ft.) 


Type  of  Hy-Rib 

22  Gauge 

24  Gauge 

26  Gauge 

28  Gauge 

\y2"  Hy-Rib 

1.340 

1.072 

.804 

If  Hy-Rib 

1.322 

1.057 

.793 

.661 

W  Hy-Rib 

.793 

.595 

.496 

3/s"  Hy-Rib 

.635 

.476 

.397 

37 


Hy-Rib — A  Kahn  Building  Product 


W  Hy-Rib  (7-Rib)  Tables 

Safe  Loads  in  Pounds  per  Square  Foot  for  Slabs 
Reinforced  with  15/16"  Hy-Rib 

(See  also  table  below) 


(Safe  loads  include  weight  of  slab.) 

(For  safe  live  loads,  deduct  weight  of  slab) 


Thickness  of  slabs 
above 

base  of  sheathing 

Gauge 

No. 

tt' 

Hy-RIb 

Moment 
ofresist- 
ance  per 
foot 

of  width 

SPAN  IN  FEET 

3 

4 

5 

6  7 

8  9 

10 

11 

2'  thick  slab 

28 

3140 

291 

164 

104 

73 

Wt.=24  lbs. 

26 

3770 

348 

196 

125 

87 

per  sq.  ft. 

24 

5020 

464 

261 

167 

117 

2K"  thick  slab 

28 

4080 

377 

212 

136 

94  69 

53' 

Wt.=30  lbs. 

26 

4900 

453 

255 

163 

113  83 

63: 

per  sq.  ft. 

24 

6530 

605 

340 

217 

152  111 

851 

22 

8160 

755 

425 

272 

189  139 

106 

3"  thick  slab 

28 

5020 

464 

261 

167 

116  85 

65 

Wt.=36  lbs. 

26 

6020 

558 

314 

200 

140  102 

78  62 

per  sq  ft. 

24 

8020 

742 

417 

267 

186  136 

104  82 

22 

10030 

927 

520 

334 

232,  170 

130  103 

3  l/i’  thick  slab 

28 

5960 

551 

310 

198 

138  101 

77 

Wt.=42  lbs. 

26 

7150 

660 

371 

238 

165  122 

93,  73 

per  sq  ft 

24 

9530 

882 

496 

317 

221  162 

124  98 

79 

22 

11910 

1101 

620 

397 

276  202 

155  122 

99 

4"  thick  slab 

28 

6900 

638 

358 

230 

160  117 

90!  71 

Wt.  =48  lbs. 

26 

8270 

768 

431 

276 

192  140 

108  86 

69 

per  sq.  ft. 

24 

11030 

1020 

572 

367 

256  188 

144  114 

92 

76 

22 

13790 

1275 

716 

459 

319  234 

179|  142 

114 

95 

x .  i  2  For  B.  M.  =  Aw  l2,  add  20%  to  above  loads. 

10  w  .  por  B.  M.  =  1  wl2,  deduct  20%  from  above  loads. 


Maximum  Spans  for  15/16"  Hy-Rib  (7-Rib)  as  Centering 

To  support  various  thicknesses  of  wet  concrete.  For  greater  spans 
use  temporary  supports. 


Gauge  of  _  THICKNESS  OF  SLAB 


15/16" 

Hy-Rib 

IK" 

2" 

to 

!  ^ 

m 

3" 

3K" 

4" 

No.  28 

3'  5* 

3'  0* 

2'  8' 

2'  5* 

2'  3' 

2'  V 

No.  26 

3'  9’ 

3'  y 

2'11' 

2'  8* 

2'  6' 

2'  r 

No.  24 

4'  r 

3'  9' 

3'  r 

3'  1' 

2'10' 

2'  8' 

No.  22 

4'ir 

4'  3' 

y  9" 

3'  5* 

3'  2’ 

3'  O' 

38 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


iy2"  Hy-Rib  (Deep-Rib)  Tables 

Safe  Loads  in  Pounds  per  Square  Foot  for  Slabs 
Reinforced  with  1  lAt"  Hy-Rib 

(See  also  table  below) 


(Safe  loads  include  weight  of  slab.) 

(For  safe  live  loads,  deduct  weight  of  slab) 


Thickness  of  slabs 
above 

Gauge 

No. 

Moment 
of  resist- 

SPAN  IN  FEET 

base  of  sheathing 

Hy-Rib 

foot 

of  width 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

2 y2"  thick  slab 

Wt.=30  lbs. 

26 

4870 

451 

254 

162 

113 

83 

63 

per  sq.  ft. 

24 

6500 

601 

338 

216 

150 

110 

85 

3'  thick  slab 

26 

6090 

563 

317 

203 

141 

104 

79 

63 

Wt.=36  lbs. 

24 

8120 

751 

423 

270 

188 

138 

106 

84 

per  sq.  ft. 

22 

10150 

940 

529 

338 

234 

172 

132 

104 

3 Yi"  thick  slab 

26 

7310 

676 

380 

243 

169 

124 

95 

75 

W t.  =42  lbs. 

24 

9740 

901 

508 

324 

225 

165 

127 

100 

81 

per  sq.  ft. 

22 

12180 

1126 

663 

406 

282 

207 

158 

125 

102 

A"  thick  slab 

26 

8530 

789 

443 

284 

197 

145 

111 

88 

71 

Wt.=48  lbs. 

24 

11370 

1052 

592 

379 

263 

194 

148 

117 

95 

78 

per  sq.  ft. 

22 

14210 

1318 

740 

473 

329 

242 

185 

146 

118 

98 

A}i"  thick  slab 

26 

9740 

901 

508 

324 

225 

165 

126 

100 

81 

Wt.=54  lbs. 

24 

12990 

1202 

678 

433 

301 

221 

170 

134 

108 

89 

75 

per  sq.  ft. 

22 

16240 

1505 

847 

541 

376 

276 

211 

167 

135 

112 

94 

5'  thick  slab 

26 

10960 

1013 

570 

365 

254 

186 

142 

113 

91 

Wt.=60  lbs. 

24 

14620 

1352 

761 

487 

338 

248 

190 

152 

122 

100 

84 

per  sq.  ft. 

22 

18270 

1688 

950 

609 

422 

310 

237 

187 

152 

126 

106 

90 

5%"  thick  slab 

26 

12180 

1123 

632 

406 

281 

207 

158 

125 

102 

Wt.=66  lbs  — 

-  24 

16240 

1500 

845 

541 

376 

276 

211 

167 

135 

112 

94 

per  sq.  ft. 

22 

20300 

1880 

1058 

676 

470 

345 

264 

209 

169 

140 

118 

100 

j  i  2  For  B.  M.  =  l'a  wl3,  add  20%  to  above  loads. 

10  W  •  por  B.  M.  =  s  w  l3,  deduct  20%  from  above  loads. 


Maximum  Spans  for  VA”  Hy-Rib  (Deep-Rib)  as  Centering 

To  support  various  thicknesses  of  wet  concrete.  For  greater  spans 
use  temporary  supports. 


Gauge  of  THICKNESS  OF  SLAB 


1 72. 

Hy-Rib 

2" 

2K" 

3" 

3^" 

4" 

4}£" 

5" 

5'/2' 

6" 

No.  22 

5'  7" 

5'  0' 

4'  6' 

A  '  2" 

3'11' 

3'  8' 

3'  6' 

3'  A" 

3'  2" 

No.  24 

5'  0' 

4'  5" 

4'  r 

3'  9" 

3'  6* 

3'  A" 

3'  2" 

3'  0' 

2'10* 

No.  26 

4'  4' 

3'10* 

3'  6' 

3'  3" 

3'  0' 

2'10* 

2'  8* 

2'  7' 

2'  6' 

39 


Hy-Rib — A  Kahn  Building  Product 


Specifications  for  Hy-Rib 
Floors  and  Roofs 

REINFORCING  STEEL. 

Provide  Hy-Rib,  Type . ,  Gauge . for  all  floors  and  roofs. 

Place  all  Hy-Rib  sheets  with  the  lath  surface  downward.  In¬ 
terlock  all  adjoining  sheets  of  Hy-Rib  at  sides  and  ends.  Sheets 
shall  be  securely  fastened  together  every  24  inches  along  the  sides 
and  at  every  rib  at  the  ends  by  wiring  or  by  clinching-  of  the 
lapped  ribs  with  special  punch.  Where  end  splices  occur  between 
supports,  splices  in  adjacent  rowrs  must  be  at  least  two  feet  apart. 
Allow  a  lap  of  2  inches  where  splices  occur  over  supports,  other¬ 
wise  8  inches. 

Hy-Rib  shall  be  rigidly  attached  to  steel  framing  by  means  of 
clips  or  strong  galvanized  wire,  and  to  wood  framing  by  staples  or 
nails.  These  attachments  shall  be  located  at  the  interlocking  side 
splices  at  least  every  12  inches  for  it"  Hy-Rib,  and  every  14  inches 
for  iy2"  Hy-Rib. 

Hy-Rib  sheets  shall  be  supported  as  required  by  lower  tables, 
pages  38  and  39,  while  concrete  is  being  poured,  and,  if  necessary, 
temporary  supports  shall  be  provided. 

No  loads  shall  be  placed  on  Hy-Rib  before  concreting  and  not 
until  the  concrete  has  thoroughly  set.  Planks  for  trucking  shall 
be  so  arranged  as  to  come  over  supports. 


MATERIALS. 

The  materials  composing  the  concrete  or  plaster  shall  consist 
of: 

(a)  Portland  Cement  which  has  been  carefully  tested  and  found 

to  satisfactorily  meet  the  requirements  of  the  specifications 
of  the  American  Society  for  Testing  Materials. 

(b)  Sand  which  is  practically  free  from  organic  matter  and  uni¬ 

formly  graded  in  size  from  coarse  to  fine. 

(c)  Broken  stone  or  gravel  which  is  good,  hard,  dense  stone — 

clean  and  of  such  size  as  to  pass  through  a  half-inch  ring. 

(d)  Hydrated  Lime  which  is  uniform  in  quality  and  perfectly 

hydrated. 


40 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


APPLICATION. 

Cover  the  Hy-Rib  sheets  with  a  concrete  made  up  as  follows: 


Portland  Cement  . 1  part 

Sand . 2  parts 

Broken  stone  . 4  parts 


The  surface  shall  be  floated  smooth  to  receive  a  standard  roof¬ 
ing  applied  as  directed  by  manufacturers.  When  the  concrete  has 
set  sufficiently  plaster  the  under  side  to  a  thickness  of  46  to  )4 
inch  with  the  following  mixture: 

Portland  Cement  .  5  parts 

Sand  . 12  parts 

Lime  Paste  .  1  part 

The  cement  and  hydrated  lime,  after  being  thoroughly  mixed 
dry  to  uniform  color,  shall  be  added  to  the  dry  sand  and  the  whole 
manipulated  until  evenly  mixed.  Add  water  to  secure  proper 
working  consistency  and  sufficient  long  cow  hair  to  key.  The 
mortar  shall  be  applied  within  30  minutes  from  time  of  mixing. 


PROTECTION. 

The  concrete  work  shall  be  thoroughly  protected  from  too  rapid 
drying  and  the  direct  rays  of  the  sun  by  means  of  damp  burlap  or 
canvas,  or  by  sprinkling.  The  concrete  slab  must  be  kept  thor¬ 
ough  moist  in  this  way  for  at  least  two  days  after  placing. 

EXPANSION  RODS. 

Where  the  width  of  the  building  is  over  200  feet  in  a  direction 
at  right  angles  to  the  main  ribs  of  the  Hy-Rib  place  7/32  or  54 
inch  round  rods,  spaced  30  inches  apart,  on  top  of  the  high  ribs 
and  at  right  angles  to  them. 


Specifications  for  Arched  Floors 

Specifications  for  arched  floors  are  the  same  as  above  except 
as  indicated  in  following  paragraph: 

Where  curved  sheets  of  Hy-Rib  are  used  for  reinforcement  of 
concrete  arches  it  is  not  necessary  to  interlock  the  sheets  along 
the  sides,  but  side  ribs  shall  be  thoroughly  wired  together.  Other¬ 
wise  splice  and  place  Hy-Rib  as  provided  for  under  Floors  and 
Roofs. 

(See  also  pages  13  and  21.) 

41 


Hy-Rib — A  Kahn  Building  Product 


Warren  City  Tank  &  Boiler  Works,  Warren,  Ohio. 
Side  wall  of  Hy-Rib  and  Concrete. 


Hy-Rib  Concrete  Sidings,  Mark  Manufacturing  Co.,  Evanston,  Ill. 
Note  United  Steel  Sash  in  walls  and  monitors. 

42 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Walls  and  Sidings 

Monolithic  concrete  walls,  costing  one-half  the  price  of 
brick,  are  built  of  Hy-Rib  plastered  with  cement.  Walls 
are  only  2"  thick,  and  thus  add  12  to  20  inches  to  the  floor 
space  on  the  inside  as  compared  with  brick  or  masonry 
walls.  These  walls  have  great  strength  and  rigidity  and  are 
built  without  forms  and  stiffening  channels. 

Hy-Rib  concrete  is  ideal  for  sidings  and  curtain  walls  of 
industrial  buildings,  factories,  power  plants,  warehouses,  car 
barns,  etc.  Such  a  wall  is  much  less  expensive  than  other 
types  of  permanent  construction,  and  much  more  economical 
than  old-style  corrugated  iron,  which  rusts  and  requires 
frequent  painting. 

For  stucco  residences,  stores  and  all  types  of  buildings, 
Hy-Rib  furnishes  ideal  reinforcement.  Occasional  posts  to 
carry  the  weight  of  the  floors  are  provided,  the  Hy-Rib  is 
attached  directly  to  them  and  the  cement  plaster  applied. 
The  extreme  stiffness  of  Hy-Rib  permits  wide  spacing  of  the 
supporting  members. 

Where  hollow  walls  are  desired,  an  additional  inside 
layer  of  Hy-Rib  is  applied,  leaving  an  air  space  between  the 
vertical  faces.  On  the  interior  the  plaster  is  applied  directly 
to  the  face  of  the  Hy-Rib.  No  furring  is  necessary,  as  would 
be  required  for  the  ordinary  brick  wall.  The  air  space  be¬ 
tween  the  Hy-Rib  sheets  makes  a  building  that  is  easy  to 
heat  in  winter  and  one  that  keeps  cool  in  summer. 

The  old  style  building  with  wooden  sidings  can  be  trans¬ 
formed  into  a  modern  stucco  structure,  by  applying  Hy-Rib 
and  plastering  with  cement — the  ribs  of  Hy-Rib  furnish  the 
necessary  furring. 


43 


Hy-Rib — A  Kahn  Building  Product 


Sunset  Publishing  Co.,  San  Francisco,  Cal. 

Geo.  W.  Kelhane,  Architect. 

The  exterior  concrete  walls  are  built  with  Hy-Rib  on  wood  studs. 


Texas  State  Fair  Assoc.,  Dallas,  Tex.,  Restaurant  Row  (500' x  44'). 
Hy-Rib  Concrete  Walls,  Kahn  System  Reinforced  Concrete, 
United  Steel  Sash  Windows  and  Doors. 


44 


Trussed  Concrete  Steel  Co.,  Youngstown,  O 


Hy-Rib  Sidings  used  in  construction  of  Superstructure  and  Tower 
above  Bins,  Husted  Milling  Co.,  Buffalo,  N.  Y. 


A.  E.  Baxter  &  Co.,  Consulting  Engineers.  Monarch  Engineering 
Co.,  Contractors.  James  G.  Davis,  Plastering  Contractor. 


45 


Hy-Rib — A  Kahn  Building  Product 


46 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


47 


Some  of  the  Buildings  at  our  Youngstown  Plant.  Note  Hy-Rib  Concrete  Roofs  and  Sidings. 
United  Steel  Sash  in  Side  Walls  and  Monitors.  See  bird’s-eye  view  on  page  4. 


Hy-Rib — A  Kahn  Building  Product 


48 


Hy-Rib  Sidings,  Favorite  Stove  &  Range  Co.,  Piqua,  Ohio. 


Trussed  Concrete  Steel  Co.,  Youngstown,  O 


49 


Hy-Rib  Sidings  and  United  Steel  Sash.  Columbus  Machine  &  Tool  Co.,  Columbus, 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Concrete  Sidings  and  Roofs. 

Lake  Superior  Iron  and  Chemical  Co.,  Manistique,  Mich. 


Holyoke  Gas  Works,  Holyoke,  Mass. 
Isbell-Porter  Co.,  Engineers  and  Contractors. 
Hy-Rib  Concrete  Sidings  and  United  Steel  Sash  Windows. 


50 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Roofs  and  Sidings,  Gas  Producer  Building,  Open  Hearth 
Dept.,  Maryland  Steel  Co.,  Sparrows  Point,  Md. 


Hy-Rib  Sidings  and  United  Steel  Sash  for  Windows. 
Quincy  Gas,  Electric  &  Heating  Co.,  Quincy,  Ill. 
Smith,  Hinchman  &  Grylls,  Archts. 


51 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Sidings,  Gas  Producer  Bldg.,  Ford  Motor  Co.,  Detroit,  Mich. 


Hy-Rib  Sidings,  American  Automatic  Railway  Switch  Co., 
Birmingham,  Ala. 


52 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Roofs  and  Sidings,  Glenmore  Distillery,  Owensboro,  Ky. 


Hy-Rib  Sidings  and  Roofs, 

Great  Lakes  Engineering  Works,  Ashtabula,  O. 

53 


Hy-Rib — A  Kahn  Building  Product 


Coach  Repair  Shop,  N.  Y.,  Westchester  &  Boston  R.  R.,  New  York. 
Hy-Rib  Concrete  Sidings.  United  Steel  Sash  for  Windows. 


Barry  Mfg.  Co.,  Muscatine,  la. 

Hy-Rib  Concrete  Sidings  and  Roofs.  United  Steel  Windows. 

54 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Siding,  Power  House,  Gainesville,  Texas. 


WEARNE  BROTHERS  LIMITED. 


ESS  SSS  SSI  SSS  SSS  SSS  SSS  SBS 

mIm  ••  n  mm  n  mIjm 

:::.  i£  Urn 

MOTOR  tNSiNCERS  *  IMPORTERS  • 


Hy-Rib  Concrete  Walls  and  Floors  for  Motor  Garage, 
Lumpur,  Federated  Malay  States. 

55 


Hy-Rib — A  Kahn  Building  Product 


Quarantine  Hospital  Buildings,  San  Juan,  Porto  Rico. 
Built  of  Hy-Rib  Concrete  Construction. 


Hy-Rib  Residence  of  Chas.  A.  Mangold,  Oak  Cliff,  Dallas,  Tex. 


56 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Fan  House,  Birmingham  Fuel  Co.,  Birmingham,  Ala. 


67 


Hy-Rib — A  Kahn  Building  Product 


r^i-f 


gSi 

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:«<<<<<<«<«<<<«*? 


Plate  Clips  (Patented)  Price,  75c  per  100 

These  clips  are  made  of  spring  steel  and  when  driven  on  to  the 
flange  of  the  steel  work,  bite  into  the  steel,  gripping  it  like  the  jaws 
of  a  vise.  A  simple,  rigid,  and  inexpensive  method  of  attaching 
Hy-Rib  to  structural  steel.  Plate  Clips  should  be  located  at  the 
interlocking  side  splice  between  sheets.  See  Hy-Rib  Punch, 
page  133. 


58 


Trussed  Concrete  Steel  Co.,  Youngstown,  O 


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59 


Hy-Rib — A  Kahn  Building  Product 


-Beam 


HOLLOW  EXTERIOR 
WALLS  BUILT  WITH 
HY-RIB 

As  used  in  connection  with  re¬ 
inforced  concrete  construction. 


Outside  ^  cement  mortar 
waterproofed  with  7ras-con 
Ciiaierproofinq  Paste 
(■See  Specif  >catrons) 


Beam 


Vertical  Section. 


,  Groove  formed  61/  p/aarx) 

(  beue/ed  strips  in  coti/mn 
\ forms  before  pot/riny  concrete  \ 


Horizontal  Section. 


60 


Trussed  Concrete  Steel  Co.,  Youngstown,  O 


-  Recesses  /or  inserf  mi/ 

'  l/erfical  Ane/le  Sfrufs 
/ormecf  bi/  placini / 
bfocAs  in  forms 
be/ore  pounnp  concrete 


SOLID 
EXTERIOR 
WALLS  BUILT 
WITH  HY-RIB 

As  used  in  connection 
with  reinforced  con¬ 
crete  construction. 


Plate  Clip 
10/i'CiC 
(of  each  side  lap) 


Oufsrc/e  cement  mortar 
u/a fe rproofed  unib  Trus-con 
Uiaterproofin, 7  Paste 
(See  (Specifications) 


SBCT/O/V 
at  B-B 


Vertical  Section. 


Ho  £Z  Gauae  Ttmaae 
Apple  fax  /4 
UfooJen  P/ups  d/xf/e 
30"  CC.  '  ' 


Column 


Horizontal  Section. 


61 


Hy-Rib — A  Kahn  Building  Product 


Specifications  for  Hy-Rib 
Walls  and  Sidings 

♦REINFORCING  STEEL. 

Provide  Hy-Rib,  Type  . . .  Gauge  ....  for  all  walls  and  sidings. 
Interlock  all  adjoining  sheets  of  Hy-Rib  at  sides  and  ends. 
Sheets  shall  be  securely  fastened  together  every  24  inches  along 
the  sides  and  at  every  rib  at  the  ends  by  wiring  or  by  clinching  of 
the  lapped  ribs  with  special  punch.  Where  end  splices  occur 
between  supports,  splices  in  adjacent  rows  must  be  at  least  2  feet 
apart.  Allow  a  lap  of  2  inches  where  splices  occur  over  supports, 
otherwise  8  inches. 

Hy-Rib  shall  be  rigidly  attached  to  steel  framing  by  means  of 
clips  or  strong  galvanized  wire,  and  to  wood  framing  by  staples 
or  nails.  Such  attachments  shall  be  located  at  the  interlocking 
side  splices  between  sheets  and  shall  occur  at  least  every  16  inches 
for  it"  Hy-Rib,  and  every  12  inches  for  and  Hy-Rib.  Place 
Hy-Rib  with  the  rib  side  on  the  outside  of  the  structure. 

MATERIALS. 

The  materials  composing  the  plaster  shall  consist  of: 

(a)  Portland  Cement  which  has  been  carefully  tested  and  found 

to  satisfactorily  meet  the  requirements  of  the  specifications 
of  the  American  Society  for  Testing  Materials. 

(b)  Sand  which  is  practically  free  from  organic  matter  and  uni¬ 

formly  graded  in  size  from  coarse  to  fine. 

(c)  Trus-Con  Waterproofing  Paste,  Concentrated,  as  manufac¬ 

tured  by  The  Trus-Con  Laboratories. 

(d)  Hydrated  Lime  which  is  uniform  in  quality  and  perfectly 

hydrated. 

APPLICATION. 

The  plaster  for  the  inside  wall  and  for  the  first  coat  of  outside 
wall  shall  be  made  up  as  follows: 


Portland  Cement  .  5  parts 

Sand  . 12  parts 

Lime  Paste  .  1  part 


The  cement  and  hydrated  lime,  after  being  thoroughly  mixed 
dry  to  uniform  color,  shall  be  added  to  the  dry  sand  and  the  whole 
manipulated  until  evenly  mixed.  Add  water  to  secure  proper 
working  consistency.  The  mortar  shall  then  be  thoroughly  worked 
until  perfectly  homogeneous.  This  composition  shall  only  be  made 
up  in  lots  that  can  be  immediately  applied,  and  any  material  that 
has  been  mixed  with  water  longer  than  30  minutes  before  applying 
shall  be  rejected. 

•Wherever  it  is  possible  the  structure  should  be  so  designed  that  the  main 
ribs  of  the  Hy-Rib  will  extend  horizontally.  Where  the  ribs  extend  vertically 
place  7/32  in.  or  %  in.  rods  30  int.  apart  at  right  angles  to  the  ribs. 


62 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


PLASTERING  OF  WALLS. 

Apply  the  first  coat  of  plaster  to  the  ribbed  side  of  Hy-Rib, 
starting  at  the  bottom  of  the  Hy-Rib  wall.  Add  long  cow  hair  to 
the  specified  mixture  in  order  to  key  the  plaster.  While  this 
coat  is  still  wet  scratch  over  the  surface  to  form  a  key  for  the 
finish  coat  which  shall  be  applied  after  the  first  coat  has  set  suffi¬ 
ciently  hard  to  hold  it. 

The  plaster  for  the  exterior  finish  coat  shall  be  of  the  same 
proportions  as  scratch  coat  except  that  in  mixing  use  water  to 
which  Trus-Con  Waterproofing  Paste,  Concentrated,  has  been 
added  in  proportions  of  1  part  paste  to  18  parts  water.  The  thick¬ 
ness  of  this  waterproofed  mortar  shall  be  at  least  34  of  an  inch. 
Finish  coat  shall  be  floated  free  from  any  porous  imperfections. 

The  interior  finish  shall  then  consist  of  composition  above  speci¬ 
fied  without  the  addition  of  waterproofing  and  shall  be  troweled 
to  a  perfectly  smooth  finish.  Total  thickness  of  finished  wall  shall 
be  134  to  2  inches. 


PROTECTION. 

Thoroughly  protect  the  finished  work  from  too  rapid  drying 
and  the  direct  rays  of  the  sun  by  means  of  damp  canvas  or  sprin¬ 
kling.  The  finished  work  must  be  kept  thoroughly  moist  in  this 
way  for  at  least  two  days  after  plastering. 


EXPANSION  RODS. 

In  walls  and  sidings  where  it  is  found  necessary  to  run  the 
main  ribs  of  the  Hy-Rib  vertically,  place  7/32  or  l/\  inch  rods, 
spaced  30  inches  apart,  at  right  angles  to  the  ribs. 


Side  Walls  Reinforced  with  Hy-Rib 

(Minimum  Requirements) 

(Ribs  of  Hy-Rib  running  horizontally) 


Spacing 

of 

Supports 

Thickness 

of 

Wall 

2' 

1)4" 

2' -8* 

1)4" 

3' 

D4" 

6' 

1)4" 

8' 

2" 

10' 

2" 

12' 

2YY 

REINFORCEMENT 


No.  28,  Yi"  Hy-Rib. 

No.  26,  Y%"  Hy-Rib. 

No.  28,  yf"  Hy-Rib,  or  No.  24, 

No.  26,  Hy-Rib,  or  No.  28, 

No.  24,  fjt'”  Hy-Rib,  or  No.  26, 

No.  26,  Hy-Rib. 

No.  24,  Hy-Rib. 


Ys"  Hy-Rib. 
tF  Hy-Rib. 
if"  Hy-Rib. 


Temporary  bracing  should  be  used  vertically  every  5  ft.  for 
f§"  Hy-Rib,  and  6  ft.  for  1§"  Hy-Rib. 


63 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Partitions,  15  feet  high,  Merchants’  Realty  Co.,  Detroit, 
Mich.  Note  extreme  height  without  use  of  studs  or  supports; 
also  heavy  first  coat  of  plaster  made  possible  by  key  and  stiffness 
of  Hy-Rib. 


64 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Partitions 

Partitions  of  Hy-Rib  require  no  stiffening  channels  nor 
expensive  wiring,  occupy  only  2",  increase  floor  space  and 
are  fireproof  and  economical. 

The  ribs  of  Hy-Rib  take  the  place  of  the  steel  channels 
and  do  away  with  the  expense  and  labor  of  wiring  lath  to 
them.  Owing  to  the  fact  that  the  lath  and  ribs  are  a 
complete  unit,  made  from  a  single  sheet  of  steel,  such  parti¬ 
tions  have  extraordinary  rigidity. 

The  construction  of  a  Hy-Rib  partition  is  very  simple. 
Fasten  the  large  sheets  of  Hy-Rib  at  floor  and  ceiling  and 
apply  the  plaster.  Cement,  lime  or  patent  plaster  may  be 
used.  Hy-Rib  presents  a  flat  surface  to  work  against,  saves 
labor  and  material  in  plaster  and  provides  a  perfect  key, 
without  dropping  of  plaster. 

The  completed  Hy-Rib  partition  is  only  2"  thick,  as 
compared  with  other  types  occupying  6"  to  8".  This  extra 
space  adds  proportionally  to  the  rental  and  investment  value 
of  your  building. 

The  fireproofness,  soundproofness  and  strength  of  the 
Hy-Rib  partitions  have  been  repeatedly  demonstrated  in 
actual  tests.  Note  tests  on  pages  36,  66  and  67. 

Where  hollow  partitions  are  desired,  pressed  steel  studs 
are  used  with  Hy-Rib  on  each  of  the  two  faces,  as  indicated 
on  page  91.  An  economical  solid  partition,  using  Y%"  Hy- 
Rib  Lath  and  Kahn  Pressed  Steel  Channels,  is  shown  on 
page  90. 


65 


Hy-Rib — A  Kahn  Building  Product 


New  York  Fire  Test  on  Hy-Rib  Partition 


Exterior  of  Partition  After  Test 


( Compiled  from  official  report  of  Fire  and 
Water  Test  made  at  the  Columbia  Fire  Testing 
Station,  New  York  City,  upon  plaster  par¬ 
tition  reinforced  with  Hy-Rib.  Test  conducted 
by  Ira  H.  Woolson,  E.  M.,  in  co-operation 
with  City  Building  Bureaus.) 

Partitions  were  of  standard  size  re¬ 
quired  by  the  Building  Specifications, 
14'  6"x9'  6".  No  26  Gauge  Hy-Rib 
was  installed  in  partition;  plaster  used 
was  Rock  Wall  put  on  in  two  inside 
and  two  outside  coats,  the  approxi¬ 
mate  total  thickness  of  partition  being 
two  inches.  The  partition  was  sub¬ 
jected  to  a  continuous  fire  for  one 
hour,  at  an  average  temperature  of 
1700  degrees  Fahr.  A  1J4”  stream 
of  water  at  hydrant  pressure  was  then 
thrown  against  it  for  two  and  one-half 
minutes. 

After  the  application  of  fire  and 
water,  the  final  maximum  deflection 
in  the  Hy-Rib  partition  was  only  J4", 
and  partition  was  in  excellent  condi¬ 
tion. 


As  a  result  of  the  above  test,  No.  28  Gauge  Hy-Rib  plastered 
two  inches  thick  for  solid  partitions,  or  with  two  thicknesses  of 
metal  for  hollow  partitions,  have  been  approved  for  use  in  the 
Borough  of  Manhattan. 


66 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Sound-proofness 
of  Hy-Rib  Partitions 

A  solid  monolithic  partition  stands  in  the  front  rank  in 
resistance  to  passage  of  sound.  The  solidity  of  the  construc¬ 
tion  without  joints  or  interstices  affords  more  effective  in¬ 
sulation  than  block  construction.  The  following  sound  test 
made  by  a  leading  testing  laboratory  in  London,  England, 
demonstrates  the  soundproofness  of  Hy-Rib  Partitions : 

To  ascertain  the  relative  resistance  to  the  transmission 
of  sound  of  three  “Telephone”  Cabinets. 

Size  of  cabinets — 3  feet  x  3  feet  x  6  feet  6  inches  high. 

Cabinet  A.  (VV.  2789.)  Built  with  cement  and  Breeze 
partition  blocks.  3  feet  x  12  inches',  2  inches  thick,  joints 
made  with  cement  mortar  1-3. 

Cabinet  B.  (VV.  2790.)  Built  with  piaster  partition 
blocks.  3  feet  x  12  inches,  2  inches  thick,  joints  made  with 
cement  mortar,  1-3. 

Cabinet  C.  (VV.  2791.)  Built  with  Hy-Rib  Sheet  rein¬ 
forcement  (28  gauge)  coated  each  side  with  cement  and  sand 
mortar  (1-3),  and  rendered  to  a  smooth  surface  inside  and 
out,  to  a  finished  thickness  of  2  inches. 

Under  varied  and  repeated  series  of  observations  we  find 
that  the  C.  Cabinet  (Hy-Rib)  shows  distinctly  greater  resist¬ 
ance  to  the  transmission  of  sound  than  either  A.  or  B. 

(Signed)  DAVID  KILKALDY  &  SON, 

Testing  and  Experimenting  Work, 

99  Southwark  St.,  London,  S.  E. 

July  22,  1912. 


67 


Hy-Rib — A  Kahn  Building  Product 


Two-inch  Hy-Rib  Partitions  after  bombardment  with  shot  and 
shell  in  Y.  M.  C.  A.,  Mexico  City,  February,  1913,  illustrating 
the  remarkable  resistance  of  Hy-Rib  Construction  to 
severest  shocks.  Plastering  holes  at  nominal  cost  are 
all  the  repairs  necessary. 


68 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy.Rib  Partitions  and  Ceilings,  New  Monroe  Bldg.,  Norfolk,  Va. 

•Vote  Grounds  for  Base  Boards  and  Picture  Mold;  also  Door  Bucks  set  in  place 
for  future  doors.  John  Kevan  Peebles,  Architect. 


Hy-Rib  Partition,  E.  W.  Browning  Apartment  Hotel,  New  York 

Showing  Hy-Rib,  scratch  coat,  second  coat  and  finish  plaster  coat. 

Fanning  Cerra,  Inc.,  Plastering  Contractor.  Buchman  &  Fox,  Architects. 


09 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Partition,  Trussed  Concrete  Building,  Detroit,  Mich. 
Note  grounds  for  base-board  and  chair  rail. 


70 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Partition,  Y.  M.  C.  A.,  Portland,  Ore.  Note  the  cast 
cement  base  as  shown  in  detail  on  page  73.  Also  note  electric 
conduits  and  switch  box  in  Hy-Rib. 


71 


Hy-Rib — A  Kahn  Building  Product 


Plastering  flat  side  of  Hy-Rib  Partition  and  view  from  opposite 
side.  Note  perfect  clinch  with  no  dropping  of  plaster. 


72 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Partition.  Buenos  Aires,  S.  A. 

Note  switch  box  and  electric  conduit  in  plastered  Hy-Rib. 


>• 

s 

\ 

*•  ^rHy-rib 

\ 

\ 

»• 

V 


-Cast  Suse 
in  S'  Lengths 


Two  Methods  of  Providing  Cement  Bases  for  Hy-Rib  Partitions. 

Where  the  cast  bases  are  used  as  in  the  Portland  Y.  M.  C.  A.  on  page 
71  the  Hy-Rib  sets  in  groove  at  top.  In  the  other  method  the  cement  finish 
is  plastered  to  proper  thickness  on  one  side  of  the  Hy-Rib.  The  temporary  brac¬ 
ing  strip  is  then  removed  and  other  side  finished.  Plaster  is  applied  to  the 
Hy-Rib  above  the  base  to  a  total  thickness  of  two  inches. 

73 


Hy-Rib — A  Kahn  Building  Product 


Polo  Grounds,  National  Baseball  League,  New  York  City. 
Snare  &  Triest  Co.,  Erectors. 

Hy-Rib  used  in  all  Sidings,  Partitions,  Ticket  Booths,  Railings,  etc. 


National  League  Baseball  Grandstand,  Cincinnati,  O. 
Hy-Rib  Concrete  Partition  Walls  around  boxes,  etc. 


74 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Calhoun  Bath  House,  Minneapolis,  Minn.  Cecil  Bayless  Chapman, 
Architect;  F.  Gottlieb  Magney,  Associate. 

Panels  of  Hy-Rib  Partitions  are  handled  as  a  unit. 


Mausoleum,  Detroit  Crematorium,  Detroit,  Mich. 
Partitions,  niches,  columns  and  beams  are  Hy-Rib  Concrete. 


Hy-Rib — A  Kahn  Building  Product 


SbeeZs  secureZu 
fasZened  ZoyeZZer 
' bu  pancb/na 
Zapped  A’/Zs. 
n/s  does  azoa// 
a/i/b  a/Z  wZr/ny. 

(See  BeZa/Z) 


Method  of  Inter¬ 
locking  and  Punch¬ 
ing  Hy-Rih  Sheets. 
(See  page  133  for 
Hy-Rib  Punch.) 


L  apped  and 
Pressed  Zoye/Zer 


°er/ecZZ// 

Zope/ner  by  panc//hy 
ca/ZZ  //and  Pane/. 


Uniting  Hy-Rib  sheets  by  punching  interlocked  ribs. 


76 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Raising  Hy-Rib  en  masse  with  2x4  wooden  scantling  in  which 
spikes  are  driven  as  shown  below.  The  ten  sheets  of  Hy-Rib 
have  been  previously  united  by  punching  the  interlocked  side 
ribs.  , 


2x4  Scantling  with  spikes  driven  in  slantwise.  These  spikes  engage 
the  Hy-Rib  mesh  permitting  a  great  area  of  Hy-Rib  to  be  raised 
or  hoisted  at  one  operation,  as  illustrated  above. 


77 


Hy-Rib — A  Kahn  Building  Product 


Temporary  Tracing  J^or  ffy-Tib 

„ _  Par /-/iron 


Construction 


- Celt  mo 


Hy-Rib 


Horizontal  Wooden  Strips  ~S  about  5  0  c.c 
are  fastened  to  f/at  side  of  Hy-fiib  and 
braced  by  strips  "St 


This  temporary  bracing  is 
removed  as  soon  as  first 
coat  of  piaster  basset. 


Temporary  Bracing  for  Hy-Rib  Partition  Construction.  This  brac¬ 
ing  is  removed  after  the  first  coat  of  plaster,  applied  to 
ribbed  side,  has  set.  No  other  bracing  is  required. 


78 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Partition — Dodge  Bros.  Power  Building,  Detroit  Mich. 
Note  simplicity  of  temporary 


79 


Hy-Rib — A  Kahn  Building  Product 


Method  of  fastening  during  Method  of  fastening  after 

construction  by  attaching  concrete  is  poured  by  drilling 
beveled  strips  to  forms.  holes  for  wood  plugs. 


Screws  or 
nails  well 
clinched 


Nail 


)?  ,  «  ?V  - i x  .  * 


Wooden  strips -3"w/de 
for  attachment  of 
chair  rat/ 


Wooden  strips  4  wide 
for  attachment  of 
base-board 
No  2?  gauge  tongue  angle  Nad 


Wooden  plugs  hx  /%' 
30'  cc 


' Beve/ed  wooden  strip 
embedded  in  concrete 
during  construction 

HY-RIB  Partitions  and  Method  of  Attaching  to  Reinforced  Con¬ 
crete  Construction. 


Drill  holes  w  f/oor  and 
ceiling  for  the  receplion 
of  wooden  p/ugs.  Nail 
ZZ  qauge  tongue  angles 
to  same 


No.22  gauge  tongue 
ang/e  xNj 


80 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


22  Gauge  Tongue  Angles 
For  attaching  Hy-Rib  in  parti¬ 
tions  and  walls.  Length,  5  feet. 
Supplied  in  bundles  of  25  angles. 
Spacings  of  tongues,  7  or  8  inches. 


Rib  Clips 

For  attaching  top  of  Hy- 
Rib  partition  to  steel  beam. 
See  also  Rib  Clips,  page  99. 


Application  of  22  Gauge  Tongue  Angle  at  Bottom  of  Partitions 

and  Walls. 


Details  for  application  at  top  and  sides  are  similar. 


81 


Hy-Rib — A  Kahn  Building  Product 


Sketch  showing 
method  of  erecting 
tig-R/b  partition  in 
connect/on  with 
Hollow  77/e  f/oors 


Sketch  showing 
method  of  erecting 
tig- Rib  partition  in 
connection  with 
wood  joists 


Sketch  showing 
method  of  erect/ng 
tig-  Rib  partitions 
in  connection  with 
suspended  cei/mgs. 


tvood 
shops 
Screws  or  nails 
well  clinched- 


tig- Rib  - 


tig-R/h 

Grounds  for  fastening 
ho.c 


,.£?  G  a.  Tongue  ^o22.^7^</e 
~  Angle  *  Hng/ej  xj  - 

m 


Jl  . 
}l." 

Jr 

'i 

*- 

/  d  <3 

1  ^ 

<7 

a  < 

r  8 

d 

ifp 

°  "d 

o  ■■yt-pf 

o 

f'.<3g  c 

Grounds  for 

fastening 

baseboard 

Screws  or  nails 
we/tc/inched 

*noi/ 

h±t±rl-f 


<4 

< 

d  c 

a  o 

>■  '  <  C 
.O'3 

&  c 

0 

0 

q  -  > 

<3  <a) 

&  V  o  • 

Two  methods  op  fastening  tig-R/h  Partition  to  wooden  f/oors 


Method  of  Attaching  Hy-Rib  Partitions  at  Ceiling 

and  Floor. 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy  Rit? 


■  Place  Pit)  La  th 
dor^ontaly 
over  l'V2"s  front 
and  bach  for 
p  la  stertng 

— 2V?  is  cut.  to 
l"*2M  above  door 
opening  anct  rur\$ 
to  ceiling 

-Detail  of  Vertical- 
-^tuds  in  Door  Frane- 


Kib-Lath- 
on  front  ^ 
and  bacKp 
|"k2" 


-Elevation  of  Door- 


•  DETAILS  Of  VIIiDOV-  -DETAILS  Of  DOOK" 

-fKAMinq-  -TFAMmq- 

■rtfAninq  details  or  z **  hy-kib  walls  &  PAKTrrions.  - 

Methods  of  Building  Wooden  Door  and  Window  Frames  into 
Hy-Rib  Partitions  or  Walls. 

83 


Hy-Rib — A  Kahn  Building  Product 


Cross  Section  at  D-D 
with  Wood  Trim 


Cross  Section  at  D-D 
with  Metal  Trim 


Fireproof  Door  Frame  in  Hy-Rib  Partitions 

The  frame  is  entirely  of  steel,  eliminating  all  wood  work  and 
leaving  absolutely  nothing  that  can  burn  in  the  partition.  The 
steel  channel  may  be  tapped,  punched  or  drilled  to  attach  wood  or 
metal  trim,  door  stops,  hinges,  locks,  etc.  Our  Pressed  Steel 
Channel  Sections  can  he  used  to  advantage  in  building  up  this 
frame  work. 


84 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Specifications  for  Solid 
Hy-Rib  Partitions 


Provide  Hy-Rib,  Type  .....  Gauge  . for  all  solid  partitions. 

Interlock  all  adjoining  sheets  of  Hy-Rib  at  sides  and  ends.  Sheets 
shall  be  securely  fastened  together  every  24  inches  along  the  sides 
and  at  every  rib  at  the  ends  by  wiring  or  by  clinching  of  the  lapped 
ribs  with  special  punch.  Where  sheets  are  spliced  at  the  ends, 
splices  in  adjacent  rows  must  be  at  least  2  feet  apart,  and  must  lap 
from  3  to  6  inches  depending  upon  the  height  of  the  partition. 

Hy-Rib  shall  be  attached  to  floors  and  ceilings  by  means  of 
small  angles  (or  channels,  or  wooden  strips)  as  indicated  in  details. 

Where  cement  plaster  is  used  provide  7/32  or  inch  rods, 
spaced  30  inches  on  center,  at  right  angles  to  the  ribs.  Where 
lime  or  patented  plasters  are  used,  rods  are  unnecessary. 

rf- -  ? 


Partitions  Reinforced  with  Hy-Rib 

(Minimum  Requirements.) 

(Ribs  of  Hy-Rib  running  vertically.) 


Height 

of 

Partitions 

Thickness 

of 

Partitions 

up  to 

10  feet 

IX’ 

12  feet 

2' 

14  feet 

2X' 

16  feet 

18-feet 

2  X’ 

20  feet 

3' 

reinforcement 


No.  28,  ff'  Hy-Rib. 

No.  26,  W  Hy-Rib,  or  No.  28,  if'  Hy-Rib. 
No.  24,  if'  Hy-Rib,  or  No.  26,  if'  Hy-Rib. 
No.  26,  if'  Hy-Rib. 

No.  24,  if'  Hy-Rib. 

No.  22,  if'  Hy-Rib. 


Temporary  bracing  should  be  used  horizontally  every  5  ft.  for 
it"  Hy-Rib  and  6  ft.  for  if"  Hy-Rib. 


For  partitions  above  25  feet  high,  structural  supports  should  be 
erected  vertically  in  accordance  with  Side  Wall  Table,  page  63,  and 
the  Hy-Rib  run  horizontally.  Also  in  special  cases  partitions 
above  12  ft.  which  will  be  subjected  to  constant  vibration,  such  as 
in  factories,  may  have  to  be  constructed  in  the  same  manner. 


86 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Lath  throughout  interior  for  partitions  and  ceilings, 
Plaza  Hotel,  Dallas,  Texas. 

Guidera  &  Bell,  Owners,  Architects  and  Contractors. 


86 


Trussed  Concrete  Steel  Co.,  Youngstown,  Ohio 


Kahn  Pressed  Steel  Studs 

Kahn  Pressed  Steel  Channels  without  Prongs,  furnished  in 
sizes  indicated  below,  are  extensively  used  in  solid  partitions,  ceil¬ 
ings,  furring,  etc. 

Kahn  Pressed  Steel  Studs  with  Prongs,  furnished  in  various 
shapes  and  sizes  as  indicated  on  pages  88  and  89,  are  used  in  walls, 
partitions,  furring,  ceilings,  etc. 

Kahn  Pressed  Steel  Hollow  Studs  shown  below  are  formed  of 
two  Y"  pressed  steel  channels  held  rigidly  together  by  spacing 
clips.  We  can  supply  the  Hollow  Studs  assembled,  but  spacing 
clips  can  be  readily  attached  to  the  channels  on  the  job.  Kahn 
Hollow  Studs  are  very  rigid,  yet  are  open  so  as  to  permit  rapid 
wiring  of  the  Hy-Rib  or  Rib  Lath,  and  allow  passage 
of  conduits  in  all  directions. 


I 


| 


Kahn 

Pressed 

Steel 

Channels. 


Kahn  Pressed  Steel  Channels  without  Prongs 
No.  16  Gauge 


SIZE 

w 

V 

IX' 

2" 

Weight  in  lbs. 
per  lineal  foot 

.276 

.332 

.442 

.553 

Stock  lengths — 12,  14,  16,  18  and  20  feet. 
Shipped  in  bundles  of  25  channels. 


Spacing  Clip  as  furnished  for  building  up 
Kahn  Hollow  Studs  on  the  job.  . 

Standard  Widths — Outside  dimensions,  2  in., 
3  in.  and  4  in.  Other  widths  can  be  furnished 
on  special  order. 

Kahn  Hollow  Studs  are  also  furnished  com¬ 
pletely  assembled  by  our  factory. 

87 


Kahn  Hollow  Studs 
as  used  in  hollow 
partitions. 

Made  of  two  H  inch 
pressed  steel  channel* 
united  by  spacing  bars. 


Hy-Rib — A  Kahn  Building  Product 


Kahn  Pressed  Steel  Studs  with  Prongs 


88 


Trussed  Concrete  Steel  Co.,  Youngstown,  Ohio 


KAHN  PRESSED  STEEL  CHANNEL  STUDS  WITH  OR  WITHOUT  PRONGS. 


Section 

Index 

Height 

inches 

Width 

of 

Flange 

inches 

Weight 

per 

lin.  foot 
lbs. 

Thickness  of  Flange 
and  Web,  inches 

Decimal 

Fractional 

C-62 

IB 

6 

2 

2.19 

.0625 

iV 

14 

2.74 

.078125 

A 

C-52 

16 

5 

2 

1.98 

.0625 

1*5 

14 

2.48 

.078125 

A 

C-4144 

16 

4 

i>4 

1 . 5b 

.0625 

A 

14 

1  .95 

.078125 

A 

C-3144 

16 

3 

1  i  j 

1 .35 

.0625 

I1 i 

14 

1 .69 

.078125 

A 

C-21 

16 

1  0.78 

.  0625 

1*8 

KAHN  PRESSED  STEEL  H  STUDS  WITH  OR  WITHOUT  PRONGS. 


Section 

Index 

Depth 

of 

Beam 

inches 

Width 

of 

Flange 

inches 

Weight 

per 

foot 

lbs 

Thickness  of  Flange 

(f) 

Thickness  of  Web 
(w) 

Decimal 

F  ractional 

Decimal 

Fractional 

B-64  16 

6 

3 

4.4 

.0625 

A 

.  1250 

a 

14 

5.5 

.078125 

. 1 5625 

B-54  16 

5 

4 

4.0 

.UbZo 

1*5 

.  1250 

A 

14 

5.0 

.078125 

A 

. 1 5625 

A 

B-43  16 

4 

3 

3.1 

.0625 

.1250 

A 

14 

3.9 

.078125 

A- 

. 1 5625 

A 

B-33  16 

3 

3 

2.7 

.0625 

A 

.  1250 

A 

14 

3.4 

.078125 

A 

.15625 

■fo 

KAHN  PRESSED  STEEL  CAP  AND  SILL  CHANNELS. 


Section 

Index 

Height 

inches 

Width  of 
Flange 
inches 

Wt.  per 
Lin.  Foot 
pounds 

Thickness  of  Flange 
and  Web,  inches 

Decimal 

Fraction 

P-62J4 

14 

6  A 

244 

2.83 

.078 

11 

614 

4.58 

.125 

A 

P-62 

14 

6A 

2 

2.58 

.078 

11 

644 

4.17 

.125 

A 

P-6114 

14 

6  A 

144 

2.32 

.078 

11 

644 

3.75 

.125 

P-61 

16 

6  A 

1 

1.64 

.062 

TS 

P-5214 

14 

5  A 

244 

2.58 

.078 

_5_ 

11 

544 

4.17 

.125 

A 

P-52 

14 

5-h 

2 

2.32 

.  .078 

11 

544 

3.75 

.125 

P-5114 

14 

&T2 

144 

2.05 

.078 

11 

544 

3.34 

.125 

A 

P-51 

16 

544 

1 

1.43 

.062 

-h 

P-4214 

14 

2K 

2.32 

.078 

11 

444 

3.75 

.125 

P-42 

14 

4  A 

2 

2.05 

.078 

11 

444 

3.34 

.125 

V* 

P-4114 

14 

4  T2 

134 

1.79 

.078 

11 

444 

2.92 

.125 

P-41 

16 

454 

1 

1.22 

.062 

lS 

P-3212 

14 

3A 

2  44 

2.05 

.078 

11 

344 

3.34 

.125 

A 

P-32 

14 

3  A 

2 

1.79 

.078 

11 

344 

2.92 

.125 

P-3114 

14 

3  A 

144 

1.53 

.078 

11 

344 

2.50 

.125 

A 

P-31 

16 

344 

1 

1.02 

.062 

P-21 

16 

254 

1 

.81 

.062 

1 h 

Hy-Rib — A  Kahn  Building  Product 


Solid  partitions 
with 

Hy-Rib  Lath 
and  widely 
spaced  studs. 


Most  Economical  Construction  for  Partitions  and  Ceilings 
Hy-Rib  Lath  and  Widely  Spaced  Studs 

In  this  money-saving  construction,  the  channels  are  spaced 
24"  to  36"  centers  instead  of  12"  to  16",  required  with  ordinary 
metal  laths,  thus  saving  one-half  the  cost  of  channels,  labor  and 
wiring. 

In  partitions,  ceilings  and  furring,  the  use  of  Hy-Rib  Lath 
with  widely  spaced  pressed  steel  channels  is  exceptionally  eco¬ 
nomical,  at  the  same  time  providing  strength,  permanence  and  fire¬ 
proofness.  Two-coat  plaster  work  is  accomplished  instead  of  three. 


M'  Hy-Rib 
Lath 

Maximum  stud  spacing  for 
walls  and  partitions 

Maximum  spacing  of  supports 
for  ceilings 

24  gauge 

36' 

33' 

26  gauge 

32' 

30' 

28  gauge 

24' 

22' 

90 


Trussed  Concrete  Steel  Co.,  Youngstown,  Ohio 


KAHN  9 
Pressed  Steel 
Hollow  Stud 


-T.crrn 


--  WmisSs 


[441^ 

■ 


T-  ■ 


^rrrn 


■rrrrr!. 


STUD  EXTENSION 

(FURNISHED  IF  DESIRED) 


Hollow  partitions  with  YY  HY-RIB  Lath  and  widely  spaced  studs. 

Hollow  Fireproof  Partitions  with  "  Hy-Rib  Lath 
and  Widely  Spaced  Studs 

The  use  of  the  YY  Hy-Rib  Lath  in  hollow  partitions  assures 
the  same  economy  as  in  solid  partitions.  By  its  use  fully  half  of 
the  studs  are  saved,  with  a  corresponding  saving  in  wiring  and 
labor.  The  excellence  of  the  key  and  the  rigidity  of  the  Hy-Rib 

saves  labor  and  material 
in  plastering. 

Only  two  coats  of  plas¬ 
ter  are  required  on  Yb" 
Hy-Rib  Lath,  where  light¬ 
er  laths  require  three,  thus 
saving  time  and  labor. 


H'  Hy-Rib 

Maximum  stud  spacing  for 

Lath 

walls  and  partitions 

24  gauge 

36" 

26  gauge 

32" 

28  gauge 

24" 

91 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Ceilings,  Bremer  Arcade  Building,  St.  Paul,  Minn. 
Buechner  &  Orth,  Architects.  Wm.  Poppenberger  &  Sons,  Plas¬ 
tering  Contractors. 

Note  method  of  suspending  Hy-Rib  from  reinforced  hollow 
tile  floors  and  heavy  first  coat  of  plaster  made  possible 
by  stiffness,  key  and  true  surface  of  Hy-Rib. 

92 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Ceilings,  High  School,  Alliance,  O. 

Richards,  McCarty  &  Bulford,  Archts. 

Ceilings 

The  numerous  small  stiffening  channels  and  expense  of 
wiring  lath  to  them  are  eliminated  in  Hy-Rib  ceilings,  re¬ 
ducing  labor  cost  by  50%  and  saving  time  in  erection. 

The  ribs  give  exceptional  stiffness  and  rigidity  to  the 
Hy-Rib,  holding  it  straight  and  true  to  line.  Hy-Rib  pre¬ 
sents  a  perfect,  flat  surface  for  plastering,  requiring  a  mini¬ 
mum  amount  of  material.  The  improved  form  of  expansion 
provides  a  perfect  key  for  the  plaster  and  prevents  its  drop¬ 
ping  off.  Two  coat  work  instead  of  three  can  be  done  on 
Hy-Rib,  saving  material  and  labor. 

Continuous  lines  of  supports  for  the  Hy-Rib  sheets  are 
placed  from  two  to  five  feet  apart.  These  supports  may  be 
in  the  construction  itself,  as  in  the  case  of  the  ceiling  at¬ 
tached  to  the  under  side  of  steel  beams;  or  lines  of  channels 
may  be  suspended  from  the  construction  above. 

Due  to  the  great  strength  of  Hy-Rib,  a  very  rigid  sur¬ 
face  for  plastering  is  secured,  which  will  not  sag  under 
the  weight  of  the  plaster  nor  yield  to  the  pressure  of  the 
trowel. 


93 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Lath  Ceiling — Hutchinson  High  School,  Buffalo,  N.  Y. 

H.  Osgood  Holland,  Architect.  James  G.  Davis,  Plastering  and  Lathing  Contractor. 
Note  perfect  surface  for  plastering  and  wide  spacing  of  supports. 


No.  26,  Y&"  Hy-Rib  on  1"  Kahn  Steel  Channels,  30"  Centers. 
Crown  Building,  Cleveland,  Ohio. 

Forest  City  Engineering  Co.,  Architects  and  Engineers. 

Masters  &  Mullen  Company,  General  Contractors. 

94 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hill  Memorial  Hall,  University  of  Michigan,  Ann  Arbor,  Mich. 
Albert  Kahn,  Architect;  Ernest  Wilby,  Associate. 

Hy-Rib  and  Rib  Lath  Ceilings,  also  Hy-Rib  Roof  and 
Balcony  Floor. 

95 


Hy-Rib — A  Kahn  Building  Product 


Note  wide  spacing  of  Channel  Supports  ready  for  Hy-Rib. 


Hy-Rib  Ceiling,  Hotel  Tuller,  Detroit,  Mich. 

Note  heavy  scratch  coat,  made  possible  by  extreme  stiffness  of 

Hy-Rib. 


96 


Trussed  Concrete  Steel  Co.,  Youngstown,  O 


Hy-Rib  Ceilings,  Mount  St.  Joseph  Academy,  Buffalo,  N.  Y. 
A.  A.  Post,  Architect. 


Hy-Rib  Suspended  Ceiling. 
Interstate  Telephone  Co.,  St.  Paul,  Minn. 

97 


Hy-Rib — A  Kahn  Building  Product 


Germantown  High  School,  Germantown,  Philadelphia,  Pa. 
Suspended  Ceilings  of  Hy-Rib. 

J.  Horace  Cook,  Architect;  Thomas  Reilly,  Contractor. 


34"  Hy-Rib  Lath  for  Ceilings.  Garden  Court  Apartments,  Detroit. 
Albert  Kahn,  Architect;  Ernest  Wilby,  Associate. 

98 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


UTS  'F'frfrF Sr? 

TRib  Clip 


3*—  Hy*Rib 


RIB-CLIP  to  support  HY-RIB  in  Suspended  Ceilings. 


Rib  Clips — Price,  $1.00  per  100. 

Rib  Clips  are  shipped  with  one  end  bent  and  other  end 
straight  as  shown  by  dotted  lines.  In  ordering  Rib  Clips, 
always  give  width  of  flange  upon  which  clips  are  to  be 
used,  or,  if  this  is  impossible,  give  size  and  weight  of  Chan¬ 
nel  or  I  beam  to  which  the  clips  are  to  be  attached. 

Rib  Clips  are  particularly  useful  for  supporting  ceilings 
as  shown  above.  For  use  in  partitions,  see  page  81. 

For  walls,  sidings  and  roofs,  Plate  Clips  (see  page  58) 
are  simpler,  better  and  more  economical. 


99 


Hy-Rib — A  Kahn  Building  Product 


Suspended  ceiling  of  Kahn  Pressed  Steel  Chanels  and  Hy-Rib  Lath 


Vi 


Y-t?'.' 


S 


l  'Hahn  pressed 
steel  channels 


tfg-ritd 


t>  \ 


- No.  7  wire  Stampers 

J-  0  "  CC  along  channel 
or  flat 


.LLlire  every  /ugh  rib  of Jfg-rih 
to  every  channel  (or flat)  ~ 
with  No  14  wire. 


fax/  flats 
S-0 "  c.c.  along  ~ 
Channel  (or flab) 


'Kahn  pressed  s/eel 
channel 


Jfy-rib 


design  Nod  design  No  2 

Sketch  showing  method  of  erecting  Ny-rih  for  suspended  c&i  lings 
in  connection  with  concrete  slabs 


Bolt  or  a/ ire 
flats  together 

2  Kahn  pressed  steel 
channels 


showing  method  of  erecting 
for  suspended  ceilings  in 
connedTion  wifh  tile  slabs 


l  ^ 

Toggle  Bol 

t 

Tile  ] 

. . -a 

'4  x /’flats  _  ^ 
S-o’cc  along  channel 

2  " Kahn  pressed  steel 
channels - 

Inse 
m  ro 
m  til 
hook 

rt  toggle  bo K 
vnd  hot e  cut 
e  and  bolt  on 
ed  flat 

^Hy-Rib 

Sketch  showing  method  of  erecting  Nyfib 
for  suspended  ceilings  in  connection  with, 
t/le  slab  floors  already  completed . 


HY-RIB  Ceilings  Suspended  from  Solid  Concrete  and 
Hollow  Tile  Floors. 


If  spans  are  increased,  or  a  live  load  is  placed  upon  ceiling,  ma¬ 
terials  of  a  larger  size  than  those  here  specified  must  be  used. 


100 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


(  *  ^ 
l  ^ 

)  A 

if.  .  O 

,»  ■'  :  O  | 

.  . \  Jd  _ _ J 

✓  d—' 

f/y-riib  | 

t  --  ”  -y  '  •  ‘  'f.  a 

■J  .  ‘i) 

°  0  lil  '  l 

pans  ion  bolls  5-0"  cc 
\  a  tong  channel. 

io  euerg  channel  lor fla/J 

in  No  ----- 


U/i, 


i  M  unre.- 


JPesrgn  JYo  l 


5-0' 


*1 


for  longer  spans  of  arch  use  heaurer  channels  or 
Hesifn  do  Z  fla/s  ui/lh  same  spacing 


<5  he  he/}  showing  me/fods  of erec/mg  l/g-rih  fir  suspended 
ceilings  in  conneclion  wrih  arched  s  off  i/s  of  floors 
u/hen  s  upp  or  ling  floor  is  already  comple/ea. 

If  spans  are  increased,  or  a  lice  load  is  p faced  upon  ceding, 
ma/er/als  of  a  larger  size  than  here  spec  fled  masi  he  used. 


Specifications 
for  Suspended  Ceilings 

Suspended  ceilings  shall  be  built  of  Hy-Rib  attached  to  lines  of 
supports,  as  indicated  in  detail;  supports  to  be  Kahn  Pressed  Steel 
Channels,  with  following  spacing  and  Hy-Rib: 


Spacing  of  Supports 

REINFORCEMENT 

1'-  10' 

No.  28,  H’  Hy-Rib. 

2'-  6' 

No.  26,  f  Hy-Rib. 

2'-  9' 

No.  24.  W  Hy-Rib. 

2'- 11' 

No.  28,  if'  Hy-Rib. 

3'-  11' 

No.  26,  H  ’  Hy-Rib  or  No.  28.  11 '  Hy-Rib. 

4'- 11' 

No.  24.  11'  Hy-Rib  or  No  26,  ft'  Hy-Rib. 

5'- 11' 

No.  24.  ft'  Hy-Rib. 

Each  high  rib  of  Hy-Rib  shall  be  attached  at  each  support. 

Place  Hy-Rib  with  the  flat  side  downward.  Interlock  all  ad¬ 
joining  sheets  of  Hy-Rib  at  sides  and  ends.  Sheets  shall  be  secure¬ 
ly  fastened  together  every  24  inches  along  the  sides  and  at  every 
rib  at  the  ends  by  wiring  or  by  clinching  of  the  lapped  ribs  with 
special  punch.  Where  end  splices  occur  between  supports,  splices 
in  adjacent  rows  must  be  at  least  2  feet  apart.  Allow  a  lap  of  2 
inches  where  splices  occur  over  supports,  otherwise  8  inches. 


101 


Hy-Rib — A  Kahn  Building  Product 


Furring 

All  furring  strips  are  eliminated  by  the  use  of  Hy-Rib. 
For  furring  inside  or  outside  of  walls,  Hy-Rib  is  nailed  or 
stapled  directly  to  the  wall  with  the  lath  side  outward, 
eliminating  entirely  the  expense  of  attaching  lath  to  furring 
strips.  Two  coats  of  plaster  instead  of  three  can  be  applied 
to  the  Hy-Rib,  saving  labor  and  plaster. 

Where  an  air  space  is  necessary  for  insulation  against 
dampness  and  temperature,  either  or  1^2"  Hy-Rib 

should  be  used,  securing  in  this  way  an  air  space  of  either 

or  V/z"  as  desired.  Where  the  furring  is  only  desired 
as  a  key  for  the  plaster,  Hy-Rib  Lath  is  entirely  ample. 

Hy-Rib  is  extensively  used  as  a  furring  for  insulation 
around  boilers,  in  cold  storage  plants,  and  on  roofs  to  pre¬ 
vent  condensation.  The  air  space  between  the  ribs  stops  the 
conduction  of  heat,  cold  and  moisture. 


102 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Specifications  for  Furring 

Hy-Rib  shall  be  placed  with  the  lath  side  away  from  wall.  It 
shall  be  fastened  to  the  wall  by  means  of  staples  or  nails  occurring 
every  36  inches  along  the  length  of  each  high  rib,  points  of  fasten¬ 
ing  being  staggered  in  adjacent  rows.  Interlock  all  sheets  at  ends 
and  sides  and  allow  1  inch  end  lap. 


Alt  Heidelberg,  Fort  Wayne,  Ind.  J.  M.  E.  Reidel,  Architect. 
Stucco  on  Hy-Rib  used  as  Furring  on  Brick  Wall. 


103 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Concrete  Residence — Dr.  Terriberry,  Fisher's  Island.  N.  Y. 
James  Sweeney,  Architect. 


Hy-Rib  Residence  for  Miss  Alice  Henck,  Santa  Barbara,  Cal. 
Thomas  Nixon,  Architect. 


104 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Industrial  Buildings 

in  Factories,  Warehouses,  Foundries,  Machine  Shops, 
Rolling  Mills,  Car  Barns,  Round  Houses,  Power  Plants, 
Elevators — in  fact,  industrial  buildings  of  all  kinds,  Hy-Rib 
is  used  extensively  for  sidings,  floors  and  roofs.  The  cement 
finish  gives  a  good,  clean-cut,  business-like  appearance  to 
the  building.  The  total  absence  of  expense  for  repairs 
makes  it  far  more  economical  than  the  old  style  corrugated 
iron  sheets  or  wooden  sheathing. 

Business  Buildings 

In  Office,  Store  and  Public  Buildings,  Hy-Rib  finds  its 
principal  uses  in  partition,  ceiling,  floor  and  roof  construc¬ 
tion.  Thin  solid  partitions  less  than  2  inches  in  thickness 
and  of  great  rigidity  are  obtained  by  using  Hy-Rib.  The 
size  of  offices  is  increased  from  4  to  6  inches  by  the  small 
space-  occupied  by  these  thin  partitions.  Such  partitions 
are  strictly  fireproof  and  in  this  way  buildings  can  be  sub¬ 
divided  into  fireproof  compartments,  which  prevent  the 
spread  of  fire. 

Partitions  built  of  Hy-Rib,  besides  possessing  greatest 
strength,  are  the  lowest  in  cost  of  any  strictly  fireproof 
method  of  building  and  are  built  more  rapidly  and  with 
less  labor. 

Residences,  Garages  and 
Small  Buildings 

The  advantages  of  using  Hy-Rib  and  Rib  Lath  in  resi¬ 
dences  and  small  buildings  are: 

1.  Practically  fireproof,  due  to  the  heat-resisting  qual¬ 
ities  of  the  two-inch  reinforced  concrete  slab  on  outside. 

2.  Absolutely  waterproof  and  dampproof. 

3.  Easy  to  heat  in  winter  and  keep  cool  in  summer, 
owing  to  the  double  air  space  in  the  wall. 

4.  Practically  indestructible,  owing  to  the  permanence 
of  the  reinforced  concrete  wall. 

5.  No  expense  for  maintenance,  such  as  painting,  re¬ 
pairs,  etc. 

6.  Unusual  architectural  beauty,  because  of  the  artistic 
effects  that  can  be  secured  with  stucco. 

7.  Low  first  cost. 


105 


Hy-Rib — A  Kahn  Building  Product 


Vertical  Section  Through 
Window. 


Details  of 
Exterior  Walls 
of  Residences 

Showing  Hy-Rib  on  outside 
and  Rib  Lath  on  inside. 


Outside  Door. 


Horizontal  Section  Through  Outside  Door. 
106 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


The  building  of  concrete  residences  and  smaller  build¬ 
ings  has  long  been  popular,  owing  to  their  permanence,  fire¬ 
proofness,  and  unusual  possibilities  for  artistic  treatment. 
The  cost  has  been  the  one  item  which  has  hindered  a  more 
universal  adoption  of  this  type  of  building. 

The  cost  of  lumber,  field  labor,  and  special  contrivances 
necessary  to  carry  on  the  ordinary  type  of  concrete  con¬ 
struction  makes  such  work  expensive  in  small  buildings. 
Hy-Rib  does  away  entirely  with  all  forms  and  special  work, 
greatly  reducing  the  cost. 

For  small  buildings  such  as  garages,  sheds,  barns,  etc., 
a  single  thickness  wall  of  Hy-Rib  plastered  with  cement 
is  ample.  To  carry  the  lloor  and  roof  loads  provide  occa¬ 
sional  posts  built  up  of  steel  members,  wooden  scantling, 
or  reinforced  concrete.  Hy-Rib  is  attached  rigidly  to  the 
posts  by  means  of  Hy-Rib  clips,  wires,  or  staples. 

For  dwelling  houses  an  air  space  should  be  provided  in 
the  outside  wall.  The  following  method  for  constructing 
stucco  walls,  will  give  by  far  the  best  results,  although  the 
other  methods  outlined  are  satisfactory: 


Inside 


16"  to £4" 


furring  Strip 


■Interior  finish 
Ft, 'as  ter 
^p^Rblath 
-Air  Space 
Jfuitding  Hiper 


hint  Wood  under  cement  mortar 
With  Creosote  or  asphalt  paint 


Outside 


Ay  Fib  fastened  to  studs  by 
Staples  oyer  each  Fib 


Air  Space 
eid'ftud 

Cem  ent  At  or  tar 
Ay  Fib 

yd  finish  Coat  of 
Wa  terproofed 
Cem  ent F/aster 


Cross-Section  showing  Construction  of  Exterior  Walls. 


Set  up  an  ordinary  “balloon”  frame  structure  with  2x4 
studding  spaced  16  to  24  inches  apart,  and  put  all  tem¬ 
porary  bracing  on  the  inside.  Fasten  Hy-Rib  at  each  rib 
to  outside  of  studs  with  staples  or  nails.  Use  or 
Hy-Rib  with  ribs  extending  horizontally  and  lath  surface 


107 


Hy-Rib — A  Kahn  Building  Product 


Various  stages  in  overcoating  frame  building,  showing  ¥%" 
Hy-Rib  Lath  before  plastering,  after  one  plaster  coat  and  finished 
stucco.  No  furring  required  for  Hy-Rib  Lath. 


Residence  of  N.  J.  Spaulding,  Ionia,  Mich. 

An  Old  Wooden  House  Transformed  into  a  Modern,  Permanent 
Residence  by  Overcoating  with  Hy-Rib  and  Stucco. 

108 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


against  studs.  Interlock  sheets  at  sides  and  ends,  securely 
wiring  or  clinching  them  at  sides  and  ends.  Paint  the 
studs  with  creosote  or  asphalt  paint  along  the  entire  outer 
face,  and  at  least  an  inch  back  on  the  sides.  Plaster  this 
Hy-Rib  on  the  outside  with  cement  mortar  (mixed  and  ap¬ 
plied  as  directed  on  page  62)  to  a  thickness  of  \x/2  inches  for 
Hy-Rib,  or  1  inch  for  Hy-Rib  Lath.  The  surface 
can  be  given  any  finish  desired.  The  last  coat  of  plaster 
finish  should  be  waterproofed  with  Trus-Con  Waterproof¬ 
ing  Paste,  Concentrated.  Then  back  plaster  the  Hy-Rib 
with  similar  mortar  to  a  thickness  of  about  half  an  inch. 

This  construction  insures  absolute  protection  for  the 
steel,  and  when  the  mortar  has  set  you  have  a  2-inch  rein¬ 
forced  concrete  slab,  solid  as  rock,  and  much  stronger  and 
more  rigid  than  the  ordinary  matched  sheathing  and  lap 
siding  of  which  it  has  taken  the  place. 

On  the  inside  of  the  studding  tack  thin  asbestos  board 
or  a  very  heavy  tarred  paper,  then  %-inch  furring  strips, 
and  Rib  Lath,  on  which  apply  -Hrinch  of  cement  mortar  or 
good  plaster  (free  from  pure  gypsum)  and  the  regular  finish 
coat. 

The  method  outlined  above  gives  a  monolithic  rein¬ 
forced  concrete  wall  of  extreme  strength  and  rigidity.  For 
large  buildings  Hy-Rib  should  be  used,  making  wall  at 
least  2"  thick.  For  medium  sized  buildings,  use  yi"  Hy- 
Rib  Lath,  making  wall  at  least  lp-."  thick.  For  cottages  and 
buildings  in  which  the  total  wind  pressure  will  not  be  great, 
some  saving  may  be  effected  by  using  y%"  Hy-Rib  Lath  or 
Heavy  Beaded  Plate  Rib  Lath,  making  wall  at  least  1 
thick.  In  this  stucco  construction  it  must  be  remembered 
that  the  only  way  to  insure  permanence  is  to  have  a  real 
reinforced  concrete  slab  on  the  outside.  No  lath  weighing 
less  than  4%  lbs.  per  square  yard  is  strong  enough  to  prop¬ 
erly  reinforce  a  concrete  wall. 


109 


Hy-Rib — A  Kahn  Building  Product 


Wonderful  transformation  of  forty-five  year  old  wood  frame 
house  to  modern  stucco  residence.  3/s"  Hy-Rib  Lath  was  applied 
directly  to  the  old  siding  without  the  use  of  furring  strips. 

David  Stott  Estate,  1700  E.  Jefferson  Ave.,  Detroit,  Mich. 
John  Shea,  Plastering  Contractor. 


110 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Another  method  which  has  been  extensively  used  in 
our  colder  climates  is  to  place  on  the  outside  of  the  stud¬ 
ding  -inch  matched  sheathing,  heavy  building  paper,  and 
V%'  Hy-Rib  Lath,  plastered  1  inch  thick  with  cement  mortar 
properly  waterproofed.  No  furring  strips  are  required. 

For  our  milder  climates  the  furring  may  be  omitted  in 
the  first  two  methods  described  and  the  paper  sheathing 
may  be  omitted  in  all  three  cases.  This  reduces  the  cost 
still  further.  . 


HORIZONTAL  SECTION  THROUGH  WALL  VERTICAL  SECTION 

DETA/LED  APPL/CAT/OH  OP  ^"hV  P/B  FOR  STUCCO  OVER  WOOD 
SHEA  TH/NG  OR  S/DWG  OF  FRAME  BU/LD//VG 


“Over-Coated”  Houses 

An  old  wood  frame  building  can  be  readily  transformed 
at  nominal  expense  into  a  fine,  stucco-finished  building  by 
the  use  of  Hy-Rib  or  Rib  Lath.  Wood  furring  strips  are 
eliminated  by  the  use  of  Hy-Rib  which  is  nailed  directly  to 
the  siding  with  the  ribs  in  a  horizontal  direction. 

The  cement  stucco  plaster  is  applied  directly  to  the  Hy- 
Rib  or  Rib  Lath.  This  plaster  should  be  the  same  as  that 
indicated  for  building  walls  and  sidings,  and  the  last  coat 
of  plaster  finish  waterproofed  with  Trus-Con  Water¬ 
proofing  Paste,  Concentrated.  The  last  coat  may  be  of  a 
smooth,  rough  or  pebble  dash  finish,  as  desired.  The  trans¬ 
formation  made  in  a  house  in  this  way  is  very  wonderful, 
enhancing  the  value  and  life  of  the  property  and  protecting 
it  against  fire. 


Ill 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Garage  for  T.  H.  Kane,  Youngstown,  O. 
Ready  for  Plastering  and  Completed. 


112 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Garage  for  W.  E.  Parker,  Grosse  Pointe,  Mich. 


Hy-Rib  Garage  for  Dr.  Moran,  Detroit,  Mich. 


113 


Hy-Rib — A  Kahn  Building  Product 


n  -  -  o  •  — r~i 


Cement  'Piaster  on  # 

26 

-  ,s/i6"  H4-T?ib 

-Front  Elevation  of  rence  — 


Details  of  HY-RIB  Concrete  Fence,  with  Reinforced  Concrete 

Posts. 


114 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Fence,  E.  J.  Smith,  Detroit,  Mich. 
Note  fence  is  open  below. 


Hy-Rib  Fence,  Ernest  G.  Swift,  Detroit,  Mich. 
Note  Hy-Rib  Garage  at  Right. 


115 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Concrete  Fence,  Minneapolis  Ball  Grounds.  Hy-Rib 
sheets  are  united  by  punching  and  placed  a  panel  at  a  time. 
Note  the  great  saving  in  labor  by  the  use  of  Hy-Rib 
and  this  method  of  handling. 


116 


Trussed  Concrete  Steel  Co.,  Youngstown,  (J. 


On  the  Farm 

Catalogue,  “Hy-Rib  Concrete  Silos  and  Farm  Buildings  ” 
sent  on  request. 

The  day  of  the  unsightly  short-lived  wood  frame  build¬ 
ings  is  passing,  and  in  their  place  are  found  modern  con¬ 
crete  structures.  The  average  farm  is  provided  with  no 
means  of  fighting  fire,  so  that  the  slightest  fire  may  cause 
the  total  loss  of  a  large  amount  of  property.  Fireproof  con¬ 
struction  is  a  necessity  in  farm  buildings. 

Hy-Rib,  owing  to  its  simplicity  and  ease  of  application, 
makes  it  possible  for  concrete  construction  to  be  carried 
on  by  the  ordinary  farm  mechanic. 

The  sand  and  stone  for  the  concrete  are  easily  accessible 
in  the  neighborhood — the  Portland  cement  is  secured  from 
local  dealers.  Hy-Rib  is  shipped  in  exact  lengths,  and, 
where  desired,  bent  to  any  curve.  Its  uses  are  found  in 
the  building  of  houses,  barns,  and  sheds  of  all  kinds — in 
constructing  culverts,  cisterns,  tanks  and  silos.  Fences  are 
also  built  in  this  way. 

We  will  gladly  supply  detailed  information  in  regard  to 
any  particular  work  that  may  be  contemplated. 


Hy-Rib  Walls,  Agricultural  and  Horticultural  Building, 
State  Fair  Grounds,  Raleigh,  N.  C. 

Frank  fC.  Thompson,  Architect  and  Engineer. 


117 


Hy-Rib— A  Kahn  Building  Product 


118 


Hy-Rib  Concrete  Sidings  on  wood  studs,  before  and  after  plastering. 
Barns  on  Walker  Bros.’  Farm,  Walkerville,  Ont. 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Albert  Kalin,  Architect, 
Ernest  Wilby,  Associate. 


“Wabeek  Farm,”  Birmingham,  Mich.  James  Couzens,  owner. 
Creamery  and  Dairy  Barn  of  Kahn  System  of  Reinforced  Concrete. 
Two  Hy-Rib  Concrete  Silos  20'x64';  also  Hy-Rib  Concrete  Fences 
and  Partitions. 


Hy-Rib  Feed  Barn  and  two  Hy-Rib  Silos.  Espanore  Farm,  Lan¬ 
sing,  Mich.  Ex-Governor  Osborn,  Owner. 

119 


Hy-Rib — A  Kahn  Building  Product 


Two  14'x30'  Hy-Rib  Concrete  Silos  on  the  McBride  Farm,  Burton, 

Mich. 


Hy-Rib  Concrete  Silos  for  J.  R.  Cross  Co.,  Jersey  Farms, 
Fairhope,  Ala. 


120 


Trussed  Concrete  Steel  Co.,  Youngstown,  O 


Silos,  Tanks,  Reservoirs, 
Cisterns  and  Chimneys 

Write  for  Catalogue,  “Hy-Rib  Concrete  Silos  and  Farm  Buildings” 

The  curved  Hy-Rib  sheets  are  set  up  on  edge  and  the 
plaster  applied  directly  to  the  inner  and  outer  surfaces. 
No  forms  of  any  kind  are  required.  Vertical  Rib  Bars 
about  5  feet  apart  should  be  used  to  serve  as  a  guide  for  the 
Hy-Rib  sheets  and  to  thoroughly  tie  the  concrete  work 
together  vertically. 

Hy-Rib  sheets  provide  in  themselves  a  thorough  inter¬ 
locking  splice  at  the  ends  and  sides.  Lap  the  sheets  at 
least  8  inches  at  ends  and  securely  fasten  together  each 
spliced  rib.  Splices  in  adjacent  rings  should  be  at  least 
two  feet  apart. 

Follow  specifications  for  Hy-Rib  walls  and  sidings,  page 
62,  for  material  and  application  of  plaster. 

It  is  usually  difficult  to  plaster  a  solid  wall  to  a  greatei 
thickness  than  4  inches.  When  heavier  solid  walls  are 
required  we  recommend  the  use  of  a  double  layer  of  Hy-Rib. 
pouring  the  concrete  in  between  the  two  sheets. 

Where  an  air  space  is  desired  on  walls  of  silos  an  innei 
and  outer  layer  of  Hy-Rib  is  used  with  our  Kahn  Pressed 
Steel  Hollow  Studs  to  separate  them.  The  inner  wall  is 
plastered  on  both  sides  and  the  outer  wall  on  the  outside 
only. 

The  roof  of  a  silo  can  also  be  built  of  concrete  and  in 
this  way  a  permanent  silo  is  secured  at  a  cost  but  slightly 
in  excess  of  the  ordinary  short-lived  wood  construction. 


121 


Hy-Rib — A  Kahn  Building  Product 


122 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Concrete 
Grain  Tank,  Shreve¬ 
port,  La.  Mr.  J.  Y. 
Snyder,  Architect. 


Dust  Collector, 
Owosso  Sugar  Co., 
Owosso,  Michigan, 
showing  Hy-Rib  be¬ 
fore  plastering  with 
cement  mortar. 


I 


123 


Hy-Rib — A  Kahn  Building  Product 


Water  Tank  (Hy-Rib),  Jefferson  Powder  Co.,  Birmingham,  Ala. 
Hy-Rib  bent  to  exact  curve  in  our  shops. 


124 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


20,000  Gallon  Tank,  Marine  Biological  Station,  San  Diego,  Cal. 
Irving  J.  Gill,  Architect. 

Tanks  and  Panels  are  built  of  Hy-Rib,  Plastered  with  Concrete. 
Posts  and  Girders  are  Kahn  System  Reinforced  Concrete. 


125 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  Concrete  Culvert,  Charleroi  Mine,  Carnegie  Coal  Co., 

W.  Monessen,  Pa. 

Note  the  corrugated  metal  culvert  which  has  been  removed  to  be 
replaced  by  the  permanent  Hy-Rib  concrete  construction. 
Only  forms  required  are  those  at  the  sides. 


Hy-Rib  Passageway  Connecting  Buildings  of  Wayne  County 
Insane  Asylum,  Eloise,  Mich. 


126 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Conduits,  Flumes  and  Culverts 

The  15/16"  Hy-Rib  is  bent  to  perfect  curve  in  our  shops. 
Simply  set  up  the  curved  sheets  on  the  job,  and  apply  the 
concrete  as  a  plaster. 

Absolute  continuity  of  reinforcement  is  secured  by  the 
positive  interlocking  of  the  sheets  at  the  sides  and  ends. 
No  forms  (the  principal  item  of  expense  in  conduit  con¬ 
struction)  or  special  field  labor  are  required.  A  few  rods, 
as  shown  on  illustration,  extending  the  length  of  the  con¬ 
duit,  should  be  provided  to  keep  the  Hy-Rib  straight  in 
line  and  as  an  additional  safeguard  against  any  shrinkage 
and  temperature  cracks.  Rib  Bars  are  recommended  for 
this  purpose. 

Either  side  of  the  Hy-Rib  may  be  plastered  first. 


127 


Hy-Rib — A  Kahn  Building  Product 


Air  Washer  made  by  McCreery  Engineering  Co.,  Toledo,  O. 
Curved  Hy-Rib  Ready  for  Plastering. 


Water-Flume  for  the  Cia.  Azucarera  del  Panuco,  El  Higo,  Mex. 
Hy-Rib  ready  for  Concreting. 


128 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Protecting  Steel  Penstock  with  thin  Hy-Rib  Concrete  Shell 
Applied  to  wood  strips  spaced  18"  centers.  This  method  eliminates  heavy  con¬ 
crete  casing  and  expensive  forms.  Oliver  Iron  Mining  Co., 
Quinnesec  Falls,  Iron  Mountain,  Michigan. 


Hy-Rib  Semi-Circles  for  Road  Culverts,  Klang,  Federated  Malay 

States. 


129 


Hy-Rib — A  Kahn  Building  Product 


Hy-Rib  in  Concrete  Walls  of  Imhoff  Tank,  Altoona,  Pa. 
Geo.  W.  Fuller,  Consulting  Engineer. 


Switchman’s  or  Gate  Tender’s  House  Built 
with  Hy-Rib  Walls  and  Roof.  Northern 
Pacific  Terminal  Co.,  Portland,  Ore. 


130 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


(Patented.) 


Hand- Power  Hy-Rib  Bender 

FOR  CURVING  15/16"  HY-RIB. 

View  shows  ff  w  Hy-Rib  in  Machine. 

The  Hy-Rib  Hand-Power  Bender  is  readily  operated  by 
two  men,  so  that  Hy-Rib  can  be  shipped  in  straight  sheets 
and  curved  locally.  This  saves  greatly  in  freight  and  crat¬ 
ing  charges,  as  curved  Hy-Rib  bulks  largely  and  is  much 
more  expensive  to  pack  and  ship  than  straight  sheets. 

The  Hand-Power  Bender  curves  Hy-Rib  to  any  circular 
arc  with  radius  greater  than  13  inches. 


131 


Hy-Rib — A  Kahn  Building  Product 


Punching  the  Hy-Rib  to  engage  the  holes  in  the  Plate  Clips. 
For  plate  clips  see  page  58. 

132 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Hy-Rib  Punch 

(Patent  Applied  for) 


Length  of  Handles,  30  inches. 

PRICE,  $6.00. 


The  H  y  - 
Punch  has  two 
uses;  1st,  for  fastening 
the  Hy-Rib  sheets  rigidly 
together,  by  merely  clamping 
the  interlocked  ribs,  doing  away 
with  all  necessity  for  wiring;  2nd,  for 
punching  holes  through  the  ribs,  especially 
when  Hy-Rib  is  attached  to  steel  work  by  means  of  the 
plate  clips,  thus  making  a  positive  attachment  between  the 
structural  work  and  the  Hy-Rib,  and  enabling  the  Hy-Rib 
to  carry  maximum  loads. 

The  use  of  the  punch  for  Hy-Rib  sidings  is  shown  on 
opposite  page.  The  edge  of  the  punch  is  lined  up  with 
the  edge  of  the  plate  clip,  which  can  be  readily  seen  through 
the  Hy-Rib  mesh.  The  small  point  of  the  punch  engages 
in  the  hole  of  the  clip  and  thus  perfectly  aligns  the  hole 
in  the  Hy-Rib  with  that  in  the  clip.  A  short  piece  of  wire 
or  a  nail  slipped  through  the  hole  fastens  the  Hy-Rib 
rigidly  in  place.  The  operation  is  very  rapid  and  simple, 
and  much  less  expensive  that  wiring  Hy-Rib  to  steel  work. 

On  roofs  the  punch  is  used  similarly  and  allows  the 
operator  to  stand  erect  while  working. 


133 


SHEARING  SHEET  OF  13/16"  HY-RIB 
WITH  HY-RIB  CUTTER.  Also  shears 
15/16"  Hy-Rib  without  change  and  1/4" 


Hy-Rib — A  Kahn  Building  Product 


134 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


(Patented.) 


Hy-Rib  Cutter.  Price,  $25.00 

For  Shearing  All  Types  of  Hy-Rib. 

For  ordinary  work,  where  Hy-Rib  must  be  cut  to  various 
lengths,  and  fitted  around  openings,  most  builders  find  it 
more  economical  to  order  Hy-Rib  in  standard  lengths,  and 
cut  the  sheets  to  the  required  size  on  the  job. 

The  Hy-Rib  Cutter  is  a  portable  shear  for  cutting 
Hy-Rib  sheets  to  any  desired  length.  It  weighs  only  85 
lbs.,  and  can  be  readily  carried  by  one  man  from  one 
location  to  another.  In  jobs  of  any  size,  the  Hy-Rib  Cutter 
pays  for  itself  many  times  over.  It  saves  time,  labor  and 
expense  over  the  use  of  the  ordinary  tinsmith’s  tools.  Many 
of  our  representatives  have  Hy-Rib  Cutters  which  can  be 
rented  for  use  on  small-sized  jobs. 

Hy-Rib  Cutters  are  furnished  complete,  ready  for  mount¬ 
ing  on  suitable  base.  The  shear  blades  are  detachable  for 
sharpening. 

The  Hy-Rib  Cutter  is  designed  so  as  to  shear  13/16", 
and  15/16"  Hy-Rib  with  the  same  blades,  and  1)4"  Hy- 
Rib  by  merely  changing  the  blades  in  the  cutter.  These 
two  sets  of  blades  are  furnished  with  each  cutter. 


135 


Hy-Rib — A  Kahn  Building  Product 


Standard  Rib  Lath 

Medium  weight  and  generally  useful  in  building  work. 
Size  of  Sheets — 21x96  inches. 

Shipped  in  bundles  containing  12  sheets,  or  18^4  yards. 


Grade 

Weight  per 
Square  Yard 

Maximum  stud  spacing 
for  walls  (c.  to  c.) 

Maximum  joist  spacing 
for  ceilings  (c.  to  c.) 

Rib  Lath  No.  1 

2.74  lbs. 

14  inches 

12  inches 

Rib  Lath  No.  2 

3.42  lbs. 

16  inches 

14  inches 

Rib  Lath  No.  4 

4. 10  lbs. 

18  inches 

16  inches 

Furnished  in  Open  Hearth  or  Copper  Bearing  Steel — All  Painted. 


“B”  Rib  Lath 


Slightly  wider  mesh  than  Standard  Rib  Lath. 

Size  of  sheets — 25x96  inches. 

Shipped  in  bundles  containing  10  sheets,  or  18^2  yards. 


Grade 

Weight  per 
Square  Yard 

Maximum  stud  spacing 
for  walls  (centtr  to  center) 

Rib  Lath  No.  IB 

2.28  lbs. 

12  inches 

Rib  Lath  No.  2B 

2.85  lbs. 

14  inches 

Rib  Lath  No.  4B 

3.43  lbs. 

16  inches 

Furnished  in  Open  Hearth  or  Copper  Bearing  Steel — All  Painted. 


136 


Trussed  Concrete  Steel  Co.,  Youngstown,  Ohio 


Beaded  Plate  or  “A”  Rib  Lath 

Somewhat  heavier  than  Standard  or  “B”  Rib  Lath,  but 
really  more  economical,  as  it  permits  wider  spacing  of 
the  studs  and  effects  a  very  great  saving  in  labor  and  plas¬ 
ter.  Two-coat  work  can  be  accomplished  on  this  as  con¬ 
trasted  to  three-coat  work  on  other  metal  laths. 

Size  of  sheets — 15^x96  inches. 


Shipped  in  bundles  containing  16  sheets,  or  18p£  yards. 


Grade 

Weight  per 
Square  Yard 

Maximum  stud  spacing 
for  walls  (c.  to  c.) 

Maximum  joist  spacing 
for  ceilings  (c.  to  c.) 

Rib  Lath  No.  1A 

3.66  lbs. 

18  inches 

16  inches 

Rib  Lath  No.  2A 

4.54  lbs. 

20  inches 

18  inches 

Rib  Lath  No.  4A 

5.45  lbs. 

24  inches 

22  inches 

Furnished  in  Open  Hearth  or  Copper  Bearing  Steel — All  Painted. 

137 


Hy-Rib — A  Kahn  Building  Product 


Detroit  Diamond  Lath 


Size  of  Sheet,  24x96  inches. 


Gauge 

Sheets 
per  Bundle 

Yards 
per  Bundle 

Weight  per 
Square  Yard 
PAINTED 

Weight  per 
Square  Yard 
GALVANIZED 

No.  27 

15 

26% 

2.48  lbs. 

2,88  lbs. 

No.  26 

15 

26% 

2.68  lbs. 

3.08  lbs. 

No.  25 

15 

26% 

3.10  lbs. 

3.50  lbs. 

No.  24 

15 

26% 

3.50  lbs. 

3.90  lbs. 

Universal  Diamond  Lath 

Size  of  Sheet,  28x96  inches. 


Gauge 

Sheets 

Yards 

Weight  per 
Square  Yard 

Weight  per 
Square  Yard 

per  Bundle 

per  Bundle 

PAINTED 

GALVANIZED 

No.  26 

14 

29 

2.30  lbs. 

2.70  lbs. 

No.  24 

14 

29 

3.00  lbs. 

3.40  lbs. 

Furnished  in  Open  Hearth  or  Copper  Bearing  Steel — 
Painted  or  Galvanized  Before  Expansion. 


Trus-Con  Metal  Base  Screeds 

eliminate  wood 
grounds  be¬ 
tween  cement 
bases  and  plas¬ 
ter  above.  Fur¬ 
nished  in  three 
types:  straight 
point,  curved 
point,  slant 
point. 

Straight  Point  Metal  Base  Screed. 

138 


Trussed  Concrete  Steel  Co.,  Youngstown,  O. 


Corner  Beads 

Our  Steel  Corner 
Beads  are  galvanized 
after  forming.  We  fur¬ 
nish  four  different  types 
of  beads  in  lengths  from 
6  to  10  feet,  to  meet 
every  requirement  for 
the  perfect  protection 
of  plaster  corners. 

Detroit  Steel  Corner 
Bead — see  illustration. 

Detroit  T-Rail  Corner 
Bead  —  similar  to  De¬ 
troit  Steel  Corner  Bead. 

Rib  Steel  Corner  Bead 
— see  illustration. 

Rib  Feather  -Edge 
Corner  Bead — for  fine, 
sharp  corners. 

Waterproofing  and  Technical  Paints 

Concrete  construction  when  in  exposed  positions  should 
be  properly  finished  and  waterproofed  by  Trus-Con  Chem¬ 
ical  Products,  consisting  of  a  complete  line  of  distinct 
products  for  this  class  of  work.  Handbook  on  request. 

Reinforced  Concrete 

The  Kahn  Building  Products,  successfully  used  in  over 
fifteen  thousand  important  structures,  includes  the  follow¬ 
ing  reinforcing  products.  Kahn  Trussed  Bars,  Rib  Bars, 
Collapsible  Column  Plooping,  Rib  Metal,  Hy-Rib,  Steel 
Floretyles,  Floredomes  and  Building  Specialties.  Also 
Trus-Con  Inserts  for  attaching  shafting;  Kahn  Armor 
Plates  and  Kahn  Road  Mesh  for  concrete  pavements,  and 
Kahn  Curb  Bars. 

Steel  Sash  for  Windows 

United  Steel  Sash  provide  maximum  daylight  and  per¬ 
manence  of  window  opening,  have  exceptional  strength  and 
superior  weathering,  are  fitted  with  hardware  made  in 
our  own  plant,  and  include  all  types  of  sliding  and  pivoted 
sash,  continuous  sash,  partitions,  doors,  casements,  etc. 


Rib  Steel  Corner  Bead. 


139 


Hy-Rib — A  Kahn  Building  Product 


PRESSED  STEEL  CHANNEL 
FOR  SUSPENOC0  CEILING 


KAHN  PRESSED  STEEL 
CHANNEL  STUD 


WIRING  FOR 
ERECTION 


WINDOW  SILL 


KAHN  PRESSED  STEEL 
I  BEAM 


Kahn  Pressed  Steel  Construction 

(See  also  pages  87  to  89.) 

y8"  Hy-Rib  Lath  is  used  extensively  in  connection  with 
Kahn  Pressed  Steel  Construction  for  floors,  ceilings,  walls, 
partition's,  etc.  This  construction  is  fire-resisting,  perma¬ 
nent  and  economical,  being  particularly  adapted  for  group 
houses,  apartment  houses,  small  stores,  and  for  floor  con¬ 
struction  generally. 


140 


Trussed  Concrete  Steel  Co.,  Youngstown,  Ohio 


A  large  variety 
of  Pressed  Steel 
members,  consist¬ 
ing  of  beams, 
channels,  joists, 
rafters,  plates, 
studs,  etc.,  are 
manufactured  by 
The  Trussed  Con¬ 
crete  Steel  Co. 
They  are  fabri¬ 
cated  completely 
in  our  shops  so 
that  no  further 
work  on  them  is 
required  at  the 
building  site.  The 
improved 
standard  connec- 
t  i  o  n  eliminates 
all  punching,  riv¬ 
eting  and  bolting. 
The  only  tool  re¬ 
quired  is  the  ham¬ 
mer.  The  Hy- 
Rib  is  quickly  at¬ 
tached  by  bend- 
ing  over  the 
prongs  on  the 
Pressed  Steel 
members. 

Complete  in¬ 
formation,  pam¬ 
phlet,  estimates, 
etc.,  will  be  furn¬ 
ished  to  interested 
parties. 


THE  ONLY  TOOL  REQUIRED  IS  A  HAMMER 

The  simple  and  easy  way  of  attaching  the  H"  Hy-Rib 
Lath  to  Kahn  Pressed  Steel  Studs. 


STANDARD  PRESSED  STEEL  FLOOR  CONSTRUCTION  WITH 
WOOD  FLOOR  FINISH  AND  PLASTERED  CEILING. 

141 


Hy-Rib — A  Kahn  Building  Product 

: 


Steel  Floretyle  Construction 

Ys"  Hy-Rib  Lath  is  used  for  ceilings  in  connection  with 
Steel  Floretyle  and  Steel  Floredome  construction.  The 
Hy-Rib  forms  a  Hat  ceiling  and  provides  a  perfect  surface 
for  plastering. 

Steel  Floretyle  construction  consists  of  rows  of  hollow 
steel  tile  covered  with  a  thin  layer  of  concrete  and  separated 
by  reinforced  concrete  joists.  These  joists,  spaced  approx¬ 
imately  24 y2"  centers,  carry  the  load  directly  to  the  sup¬ 
ports,  while  the  Floretyle  acts  merely  as  a  filler,  saving 
concrete  and  reducing  dead  load.  The  corrugated  Flore- 
tyles  have  deep  stififening  ribs  across  the  top,  and  especially 
formed  corners,  corrugated  sides  and  corrugated  flanges 
along  the  bottom  edges,  so  as  to  provide  great  stiffness  in 
supporting  loads. 

Steel  Floredomes  are  similar  to  Floretyles,  except  that 
they  are  only  open  on  the  under  side,  so  that  joists  may 
extend  on  all  sides  of  the  dome,  and  carry  the  loads  in  two 
directions  to  the  supports. 

More  complete  information  on  Floretyle  and  Floredome 
constructions  is  furnished  in  special  literature. 


142 


INDEX  OF  CONTENTS 


PAfiK 

Air  Washer  . 128 

Angles  for  Hy-kib  (No.  22  gauge).  81 

Arched  Floors  . 10-41 

Bases,  Cement  for  Partitions .  73 

Base  Screeds  . 138 

Beads,  Corner  . 139 

Bending  Hy-Rib,  Types  of .  9 

Bender  for  Hy-Rib  (Hand  Power)  .  131 

Bridge  Floor  .  19 

Business  Buildings  . 105 

Ceilings  .  .  . ., . 92-101 

Details  of  Suspended . 99-101 

Minimum  Requirements  . 101 

Centering  Max.  Spans  of  Hy-Rib. 38-39 

Channels,  Pressed  Steel . 87-90 

Chimneys . 121 

Cisterns . 121 

Clips,  Plate . 58-59 

Clips,  Rib  .  99 

Conduits . 127 

Corner  Beads  . 139 

Culverts . 126-129 

Curved  Hy-Rib .  9 

Cutter  for  Hy-Rib . 134-135 

Depths  of  Ribs  . 6—8 

Designing  Data  for  Hy-Rib .  37 

Detroit  Steel  Corner  Beads . 139 

Detroit  Diamond  Lath . 138 

Dome  of  Hy-Rib .  34 

Door  Frames  in  Walls  and  Parti¬ 
tions  . 83,  84.  103 

Explanation  of  Hy-Rib  Tables .  37 

Fan  House  .  57 

Farm,  Uses  of  Hy-Rib  on . 117-125 

Fences . 114-116 

Finishing  Concrete  . 139 

Fire  Test  on  Concrete  Tank .  36 

Fire  Test  on  Hy-Rib  Arch .  20 

Fire  Test  on  Hy-Rib  Partition....  66 

Floors  . 10-41 

Arched . 10-41 

Bridge  .  19 

Fire  Test  on .  20 

Safe  Loads  for . 38-39 

Specifications  for  . 40-41 

Types  of  . 14-15 

Floretyles  and  Floredomes . 142 

Flumes . 128 

Furring  . 102-103 

Garages . 105-113 

General  Uses  of  Hy-Rib .  5 

Hand  Power  Hy-Rib  Bender . 131 

Hoisting  Hy-Rib  en  Masse .  77 

Houses  . 104-111 

Hy-Rib  Described  .  5 

Bender  (Hand  Power) . 131 

Bent  to  Curve .  9 

Clips . 58,  99 

Cutter  . 134-135 

Properties . 6-8 

Punch  . 132-133 

Types . 6-7 

Industrial  Buildings  . 105 

Interlocking  Hy-Rib  Sheets.  ..  .11,  76 
Kahn  Pressed  Steel  Construc¬ 
tion  . 87-91,  140-141 

Lath,  Diamond  . 138 

Lath,  Rib  . 136-137 

Loads  Carried  by  Hy-Rib  Slabs.  .38-39 

Load  Test  . 20,  36 

Loads  Carried  by  Arched  Hy-Rib 
Floors  .  21 


Max.  Spans,  Hy-Rib  as  Centering .  38-39 

Ordering  Hy-Rib  .  8 

Overcoated  Houses  . 108-111 

Partitions . 64-91 

Cement  Bases  .  73 

Channel  Partitions  .  90 

Details . 80-84 

Door  Framing  Into . 83,  84 

Fire  Test  on  Hy-Rib .  66 

Fireproof  Door  Frames  in .  84 

Hollow  Partitions  .  91 

Minimum  Requirements  of .  85 

Specifications  for  Solid.... i .  85 

Soundproofness  of  .  67 

Temporary  Bracing  for . 78-79 

With  Reinforced  Concrete .  80 

Plate  Clips  . 58-59 

Pressed  Steel  Construction 

. 87-91,  140-141 

Properties  of  Hy-Rib . 6-8 

Punching  Hy-Rib  Sheets . 76,  132 

Punch  for  Hy-Rib . 132-133 

Raising  Hy-Rib  en  Masse .  77 

Reinforced  Concrete  . 139 

Reinforced  Concrete  with  Hy-Rib 

Partitions .  88 

With  Hy-Rib  Walls . 60-61 

Reservoirs . 121 

Residences  . 104-111 

Rib  Clips  .  99 

Rib  Lath  . 136-137 

Rib  Steel  Corner  Beads . 139 

Roofs  . 22-41 

Fire  Tests  on .  20 

Sawtooth . 27-32 

Safe  Loads  on  Hy-Rib . 38-39 

Specifications  for  . 40-41 

Tile  Supports,  Details  of .  30 

Safe  Loads  for  Hy-Rib  Slabs. ... 38-39 

Sash  (Steel)  for  Windows . .  .  .139 

Sawtooth  Roofs  . 27-32 

Screeds,  Metal  Base . 138 

Sidings  and  Walls . 42-63 

Minimum  Requirements  for .  63 

Specifications  for  . 62-63 

Silos . 117-121 

Small  Buildings  . 104-113 

Soundproofness  of  Hy-Rib  Partitions  67 
Specifications  for  Arched  Floors ...  41 

For  Ceilings  Suspended . 101 

For  Furring  . . 103 

For  Hy-Rib  Floors  and  Roofs. 40-41 

For  Solid  Partitions .  85 

For  Walls  and  Sidings . 62-63 

Steel  Sash  for  Windows . 139 

Steel  Studs  . 87-91 

Tanks . 36,  120-125 

Temporary  Bracing,  Partitions.  .  .  .78-79 
Temporary  Supports  for  Hy-Rib 

Slabs  . ; .  37 

Tests . 20,  36,  66-67 

Tongue  Angles .  81 

Trus-Con  Metal  Base  Screeds . 138 

United  Steel  Sash . 139 

Universal  Diamond  Lath . 138 

Walls  and  Sidings.  . .  . . 42-63 

Minimum  Requirements  for .  63 

Of  Residences  . 104-111 

Specifications  for . 62-63 

Waterproofing  Concrete  . 139 

Window  Frames  in  Walls  and  Par¬ 
titions  . 83,  106 


INDEX  OF  ILLUSTRATIONS 


Agricultural  Bldg.,  Raleigh,  N.  C.117 
American  Car  &  Fdry.  Co.,  Roofs..  33 

Alt  Heidelberg,  Ft.  Wayne . 103 

Amer.  Auto.  Rv.  Switch  Co .  52 

American  Well  &  Prospecting  Co.  47 
Barry  Mfg.  Co.,  Roofs  &  Sidings..  54 

Bending  Hy-Rib .  9 

Joseph  Bendt  Store,  Arched  Floor.  .  10 
Birmingham  Fuel  Co.  Fan  House..  57 

Bremer  Arcade  Bldg.,  Ceilings .  92 

E.  W.  Browning,  Apt.  Hotel .  69 

Calhoun  Bath  House,  Partitions.  .  75 

Carnegie  Coal  Co . 126 

City  Water  Works,  Detroit,  Roof..  30 

Columbus  Mach.  &  Tool  Co .  49 

Concrete  Grain  Tank . 123 

Conduit . 127 

Continental  Motor  Mfg.  Co.,  Roof.  28 
1.  R.  Cross  &  Co.,  Fairhope,  Silos.120 

Crown  Building,  Ceiling .  94 

Culverts,  Klang,  F.  M.  S . 129 

Details  of  Floor  Construction .  14 

Details  of  Hy-Rib  Fence . 114 

Details  of  Hy-Rib  Partitions  ....80-84 
Details  of  Plate  Clip  Connections..  59 

Details  of  Roof  Tile  Supports .  30 

Details  of  Suspended  Ceilings .  100-101 

Details  of  Walls . 60-61 

Details  of  Walls  of  Residences.  106-107 
Detroit  Crematorium  Mausoleum.  .  75 

Diamond  Lath  . 138 

Detroit  Salt  Works,  Sidings .  46 

Detroit  Steel  Corner  Bead . ....139 

Dodge  Bros.’  Power  Bldg.,  Part..  .  .  79 
District  Court  House,  Hy-Rib  Floors  16 

D.  A.  C.  Bldg.,  Hy-Rib  Floor .  17 

Eastern  Coal  Dock  Co.,  Sidings....  49 
Espanore  Farm,  Birmingham,  Mich. 119 

Fairview  Mausoleum,  Roofs . .  34 

Favorite  Stove  &  Range  Co.,  Sidings  48 
Featberstone  Foundry  Co..  Roofs... 26 
Fire  Test  on  Hy-Rib  Partitions....  66 

Fire  Test  on  Hy-Rib  Arch .  20 

Fire  Test  on  Hy-Rib  Tank .  36 

Eloretyle  and  Floredome . 142 

Edw.  Ford  Plate  Glass  Co . 16,  24 

Ford  Motor  Co . 27,  52 

Barden  Court  Apartments,  Ceilings  98 
Germantown  High  School,  Ceilings  98 

Glenmore  Distillery  .  53 

Great  Lakes  En.  Wks .  53 

Hayden  Pump  Co.,  Roof . 22 

Hawaiian  Pineapple  Co..  Floors...  12 

Miss  Alice  Henck,  Residence . 104 

Hill  Memorial  Hall,  Ceilings......  95 

High  School,  Alliance,  O.,  Ceilings  93 

Holyoke  Gas  Works,  Sidings .  50 

Husted  Milling  Co.,  Sidings. .  45 

Hutchinson  High  School,  Ceiling..  94 

Hy-Rib  Bender,  Hand  Power . 131 

Hy-Rib  Cutter . 135 

Hy-Rib  Punch  . 133 

Unhoff  Tank,  Altoona,  Pa.,  Walls..  130 
Independent  Co-operative  Milling 

Co.,  Grain  Tanks  . 122 

International  Harvester  Co..  Roof.  28 
Interstate  Telephone  Co.,  Ceilings.  97 

lackson  Cushion  Spring  Co .  31 

Jefferson  Powder  Co.,  Water  Tank.  124 
K.  of  P.  Orphanage,  Weatherford, 

Texas,  Floor  . .  17 

Kahn  Pressed  Steel . 87.  140 

Kane,  T.  H..  Garage . 112 

Kempsmith  Mfg.  Co.,  Roof .  29 

Kuhlman  and  Meyers  Grain  Tanks.122 


PACE 

Lake  Superior  Iron  &  Chem.  Co. .  50 

Load  Test  on  Hy-Rib  Slab .  36 

Louisville  Rv.  Co.  Roofs .  28 

C.  A.  Mangold,  Residence .  56 

Marine  Biological  Station,  Tank... 125 

Mark  Mfg.  Co.,  Sidings .  42 

Maryland  Steel  Co .  51 

Merchants’  Realty  Co.,  Partitions..  64 

Michigan  Central  R.  R.,  Roof .  25 

Milwaukee  Corrugating  Co.,  Roofs.  27 
Minneapolis  Ball  Grounds,  Fence... 116 

Dr.  Moran,  Detroit,  Garage . 113 

Motor  Garage,  Lumpur,  F.  M.  S..  55 
Mount  St.  Joseph  Academy,  Ceiling  97 

McBride  Farm,  Silos. . . 120 

McCreary  Engr.  Co.,  Air  Washer.  128 
National  Baseball  League.  Grand 
stand,  Cincinnati  and  New  York  74 
New  Monroe  Bldg.,  Partitions....  69 
N.  Y.,  Westchester  &  Boston  R.  R  54 
North  Adams  Power  Co.,  Floors...  13 
Northern  Pacific  Terminal  Switch¬ 
man  House  . 130 

Oliver  Chilled  Plow  Co.,  Roof .  32 

Oliver  Iron  Mining  Co.,  Penstock.  .129 

Overcoating  Houses  . 108-111 

Owosso  Sugar  Co . 123 

Packard  Motor  Co.,  Roof .  22 

W.  E.  Parker,  Garage . 133 

Pennsylvania  Rubber  Co.,  Roof....  31 

Plate  Clips  .  58 

Plaza  Hotel,  Partitions  and  Ceilings  86 

F.  R.  Plumb  Tool  Co.,  Roof .  29 

Power  House,  Gainesville,  Texas...  55 
Presidential  Palace,  Havana,  Dome  34 
Punching  Hy-Rib  for  Plate  Clips...  132 
Punching  and  Interlocking  Hy-Rib  76 

Quarantine  Hospital,  Sidings .  56 

Quincy  Gas,  Elec.  &  Heat  Co .  53 

Raising  Hy-Rib  En  Masse .  77 

Rib  Clips  . 81,  99 

Rib  Lath  . 136-137 

Rib  Steel  Corner  Beads . 139 

St.  Mary’s  Hospital,  Arched  Floor.  18 

Shearing  a  Sheet  of  TJy-Rib . 134 

Smith  Bros.’  Grain  &  Elev.  Co....  46 

Steel  Studs  .  87 

F..  J.  Smith,  Detroit,  Fence . 115 

Southern  Methodist  Univ.,  Roofs..  33 

■NT.  J.  Spaulding,  Residence . 108 

St.  Andrew’s  School,  Floor .  19 

Stott’s  Residence,  Overcoated . 110 

Sunset  Publishing  Co.,  Walls .  44 

E.  G.  Swift,  Fence . ...:.. 115 

Temporary  Bracing  for  Partitions..  78 
Temporary  Supports  for  Hy-Rib...  3" 

Texas  State  Fair  Assn.,  Walls .  44 

Dr.  W.  S.  Terriberry,  Residence.  .  .10^ 

Trus-Con  Metal  Base  Screeds . 13C 

Trussed  Concrete  Bldg.,  Partitions.  76 

Toiler  Hotel,  Detroit,  Ceilings .  96 

Types  of  Hy-Rib  Floors . 14-lf 

Union  St.  Ry.  Co.,  Arched  Floors.  1C 
Viaduct  over  Nolan  Creek,  Floor..  19 
Wabeek  Farm,  Birmingham,  Mich.  119 

Walker  Bros’.  Farm,  Sidings . 11F 

Wall  Construction  of  Houses . 1C"' 

Warren  City  Tank  &  Boiler  Wks., 

Sidings . 42 

Water  Flume,  El  Iligo,  Mexico. ...  128 

Wayne  Co.  Insane  Asylum . 126 

Western  Sugar  Refining  Co .  3? 

Westgate  Common  Mills,  Floor.  .  .  Is 
Y.  M.  C.  A.,  Portland,  Ore.,  Part.  71 
Y.  M.  C.  A.,  Mexico  Citv,  Partition  68 
Youngstown  Plant,  Buildings. 4,  35,  47 


Tornt  D214  10M  T.C.S.Co.  Press  5-16- P. 


